Astrophotography Barlow vs eyepiece projection

Astrophotography --- eyepiece projection or Barlow lens

Barlow or Eyepiece Projection - Major & Minor Planetary

With eyepiece projection,you can use all kinds of eyepiece's long as they fit's in the sleeve (35mm-4mm), If want to get more Mag., Use the EOS camera's Digital Zoom -vs- Barlow,up to x5 works pretty good, at x10 though it'll go fuzzy again Barlows don't work with it,I got the same thing you describe, fuzz edge,an some loss of contrast Particularly if you do astrophotography in direct focus rather than in eyepiece projection, i.e., you use the telescope as a photographic lens, a Barlow lens is a must. In this case, you cannot use the eyepiece of different focal lengths in order to magnify the image. The most common Barlow lens offers a 2X, 3X, or 5X magnification Another use for a Barlow is in negative projection astrophotography. In this configuration, you use a Barlow in the telescope, but without an eyepiece and without a lens in the camera. This magnifies the image beyond what you would get in prime focus mode, but not as much as with eyepiece projection photography Eyepiece projection astrophotography is for more advanced star shooters. It is easily among the most challenging processes in amateur astrophotography, not because of the setup but because of the effects that have to be considered and factored in. But with the right equipment and some practice it can be mastered - and the results speak for. Eyepiece apparent vs real field of view CCD arc-sec/pixel and focal ratio arc-sec/pixel using known object size f/ratio focal length using known object size CCD Critical Sampling Focal reducers Focal reducers & refractors/lenses Focal reducers & SCTs - !NEW! Eyepiece Projection CCD Dust Shadows CCD Filter Reflections Visual limiting magnitud

Barlow or EP Projection? - Astronomy Discussion Foru

Steve says: Eyepiece projection is a method of capturing images through a telescope's eyepiece using a camera with its lens removed, and is normally used where high magnification is required, for example when imaging planets or features on the Moon. One of the issues associated with this method of imaging is attaching the camera adequately. All forums Astrophotography Talk Forum Change forum. The best eyepiece brand to photography Eyepiece projection is often used to greatly increase focal length for lunar/planetary imaging. Since the field of view can be very small, an expensive eyepiece meant to provide highly corrected, wide field views with short focal ratio telescopes is. Eyepiece projection astrophotography. Taking your point and shoot camera (an example is a Canon Powershot SX720) and pointing it into a telescope eyepiece is known as the eyepiece projection astrophotography method. You simply line the camera lens up with the opening of the eyepiece and try to capture the view seen through the telescope at that. An Astrophotography Primer. by strangeghost. Astrophotography is a highly specialized branch of photography that involves capturing interesting and beautiful images of the night sky. As the title above indicates, this is not really a tutorial. It is more of a primer, and introduction to the methods of astrophotography for DPC members

Barlow Lens vs Eyepiece - Magnification Battl

  1. Eyepiece projection astrophotography involves aligning the camera lens with a telescope eyepiece, to utilize the magnification of the eyepiece and or/Barlow lens. This method is useful for planetary astrophotography, but not deep-sky imaging. Solar Transit (Solar Filter) Planetary Imaging
  2. Afocal Astrophotography; Eyepiece Projection Astrophotography; The order is more or less according to difficulty, from the easiest to the most difficult. If you have a camera, whether it is film or digital, you can do astrophotography. For some types of astrophotography, the camera can be a simple point-and-shoot model, or a sophisticated DSLR
  3. ology - the following diagram provides a brief illustration of light path inside the telescope with some of its basic elements - one with an eyepiece and one with a CCD camera

Barlow Lens Versus Eyepiece Projection - BackyardEOS - O

Close up of moon | Eyepiece projection 13mm baader

Eyepiece projection astrophotography requires a DSLR or mirrorless digital camera with a removable lens. Accurate tracking/guiding will be required even with bright objects due to the magnification. When imaging planets doing a video recording and then stacking the images will get you the best images Negative projection - same as above but with a Barlow lens in the telescope. Eyepiece projection - an eyepiece is in the telescope, but without the camera lens. Afocal - an eyepiece is used with the telescope, along with the camera lens; this provides the most highly magnified image Barlow Projection - This method is essentially the same as Prime Focus above except that it places a telenegative lens (barlow) between the telescope and camera.This increases the focal length of the system which increases magnification. See: 1.25 Prime Focus Kits (for scopes that accept only 1.25 eyepieces) 2 TRUE-2 UltraWide Adapters (for scopes that can accept 2 eyepieces

Astrophotography by Rob Kantelber

Negative projection, with a Barlow lens in the telescope or a teleconverter on the camera, works much better. The appeal of positive projection is that, like afocal coupling, it works with any telescope that will take an eyepiece; you don't have to worry about the position of the focal plane (Figure 5.3) Eyepiece apparent vs real field of view CCD arc-sec/pixel and focal ratio arc-sec/pixel using known object size f/ratio focal length using known object size CCD Critical Sampling Focal reducers Focal reducers & refractors/lenses Focal reducers & SCTs - !NEW! Eyepiece Projection CCD Dust Shadows CCD Filter Reflections Visual limiting magnitud Here is a video I made about using the Evoguide 50ED for astrophotography. Showing the different types of setups for doing eyepiece projection, prime focus with a DSLR or Mirrorless camera, use of a planetary camera, and finally, the use of the Evoguide 50ED Field Flattener with astro camera for deep sky astrophotography

Question about astrophotography with a Barlow len

Astrophotography is more technical and scientific than most other photography genres. Barlow Lens This accessory increases the effective focal length of your telescope. It uses a diverging lens and is common in planetary work. For eyepiece projection, you fix the camera on the eyepiece without a lens Creating astrophotography with a digital camera in this method means only way to shoot through a telescope with them is by the afocal method, whereby the camera's lens is aimed directly into the telescope's eyepiece. You can hold the camera by hand, mount it on a separate tripod, or make or buy a bracket to attach the camera directly to the.

Calculators already have sample data in them. Some are examples from my telescope, a C11 SCT with 279.4 mm of aperture and 2,794 mm focal length at f/10. Highlight the numbers already entered in the boxes and delete them and enter your own. For large numbers, do not use commas. Formulae used for these calculators Taking images of moon and planets is no problem using eyepiece projection or a barlow lens. But if you want a coma corrector and perhaps a DSLR for deep sky imaging, there are two possibilities: 1] Focuser UNCN2 - the short Crayford focuser fits directly to the existing holder and replaces the original Crayford Free US Shipping Over $20. Blue Fireball M48x0.75 Thread Spacer Ring with 35mm Extension # S-M48-35. Our Price: $24.95. In Stock. Add to Cart. Free US Shipping. Blue Fireball M48x0.75 Thread Spacer Ring with 7.5mm Extension # S-M48-7.5 Zoom eyepiece vs Barlow lens. She has been looking at the sky for years and hopes to introduce more people to the wonderful hobby that is astronomy. Related Posts. Best 50mm Telescope: Reviews and Buying Guide. February 19, 2021. Svbony Barlow Lens Review. January 26, 2021

What Is A Barlow Lens and How To Use On

  1. deep sky astrophotography; Jim Solomon's cookbook for prime focus astrophotography . Introduction: prime focus is when a camera is attached directly to the optical path of a camera lens or telescope without an eyepiece although a camera tele-converter lens or a Barlow lens may be added to the system to increase magnification
  2. Barlows are so good that they are being used even in more expensive wide-angle eyepieces where the Barlow is simply integrated into the construction of the eyepiece. The Barlow lens is always being used between the telescope lens and the eyepiece. Barlow lenses will fit a 31.7 mm or 50.8 mm eyepiece holder barrel
  3. USING SONY a900 for ASTROPHOTOGRAPHY and when a Barlow is employed. For instance a x2 Barlow decreases image circle to ~38mm. This is an example of a T-Adaptor & 2-inch sleeve: • TELESCOPE ADAPTORS - EYEPIECE PROJECTION Eyepiece projection enables a far larger image scale at the expense of a slower effective focal ratio
  4. >I'm familiar with photography using eyepiece projection and barlows >(or televue powermates), but I never heard of projection using a field >flattener. I'm sure someone can ramble on about the advantages and >disadvantages of such a scheme. I do 35mm film photography. > It is not a simple flattener. It is a flat field Barlow, using a 4 elemen
  5. Eyepiece Projection & Prime Focus. This kit includes the parts you will need for both Prime Focus and Eyepiece Projection astrophotography packaged together in one money saving easy to purchase kit. Fits any telescope with a standard 1.25 eyepiece port. The included parts will allow you to couple your SLR or DSLR camera for prime focus.
  6. If you want a narrower field of view, I recommend using a barlow on the telescope and connecting the camera to that with a camera adapter to fit the barlow (either a 1.25″ or a 2″ depending on what size the barlow is). In general, I avoid eyepiece projection because it's so finicky and difficult to get as good a result as with prime focus.

It is an excellent quality 2-Element achromatic Barlow lens that will double the focal length of your telescope. The aim of Barlow lenses is to prolong the telescope's focal length, so e.g. with a 2x Barlow, when we divide the doubled focal length of a telescope with the focal length of the eyepiece we got two times the magnification obtained 30mm 2 Camera Projection Superview Lens A quality wide angle Superview eyepiece with full multi-layer coating. Can be used as a normal eyepiece or to use for eyepiece projection photography it has an external extendable sheath with a removable cap. This reveals a M57 thread. Add the Camera Adapters for connecting fro Eyepiece Projection & Variable Eyepiece Projection - In this imaging method an eyepiece is used to increase magnification. The eyepiece is placed between the camera and the telescope. The eyepiece projects the image onto the camera sensor. The projected image size increases with distance, similar to a flashlights beam Eyepiece projection: afocal (10) Eyepiece projection: classical (13) Manufacturer. Astronomy for me means balancing the portability of my telescope setup against the quality of image provided, while minding my budget. if you use e.g. a Barlow lens for higher magnifications - then you need a stronger filter like ND1.8 for lower.

Barlow Vs Eyepiece - lcas-astronomy

A Barlow lens acts as a multiplier. So an eyepiece that gives you 40X by itself would give you 120X when placed in this 3X Barlow. The stock eyepieces provide 16, 40, and 80X. With the eyepiece in the 3X Barlow, you would add 48X, 120X, and 240X. Only the 120X provided by having the 10 mm in the Barlow lens is helpful Super ACHROMATIC (MultiCoated /High Colour corrected) 2X BARLOW 1.25 OD, 2 ELEMENT LENS with T-thread for direct camera attachment /with Brass compression ring / GSO. . . . Rs. 3,000 Rs. 3,000 2 inch T-2 Camera Adapter . . .

Full Moon - 25mm eyepiece projection - 2 x barlow moon measures 80mm on standard print (200asa 1/250). This is not at full projection but fits the standard frame nicely - at maximum projection with the 25mm eyepiece the moon is 136mm and the moon bleeds of the side of the standard 6x4 print SV112 1.25 Eyepiece Projection Kit for Telescope Astrophotography. In Stock. Unavailable. SKU: F9183A. 0. Regular price US$ 59.99. US$ 59.99. Svbony SV112 includes the parts you will need for both prime focus and variable eyepiece projection. Fits telescopes with a standard 1.25'' eyepiece port Eyepiece Projection Adapter. From the Televue website: For striking lunar and planetary photography use select 1¼ eyepieces in the Eyepiece Projection Adapter to increase the magnification factor of your telescope by 4.9 to 28.7 times. The lower barrel holds the 1¼ eyepiece. The top half is threaded for standard 35mm camera T-rings

Celestron Omni series eyepieces offer a 50º apparent field of view, perfect for the Moon,... View Full Product Details. Learn More. Omni 40mm Eyepiece - 1.25. $59.95. Omni 40mm Eyepiece - 1.25. $59.95. Details: Celestron Omni series eyepieces offer a 43º apparent field of view, perfect for the Moon,.. Astromania 1.25 Extendable Camera Adapter - for Either Prime-Focus Or Eyepiece-Projection Astrophotography with Refractors or Reflector Telescopes - Threaded for Standard 1.25inch Astronomy Filters SVBONY 1.25 inches CA1 Extension Tube M42 Thread T Mount Adapter and T2 Ring Compatible for Nikon DSLR Camera Photography and Telescope Eyepiece Both the 2 eyepiece holder and the special 2 flat top adapter use our brass clamp rings for secure operation. And, it also has a very unique feature: you can unscrew the 2 eyepiece housing and screw on a special T-ring adapter for solid, compact attachment of CCD or camera equipment. Excellent with long eye-relief, 2 eyepieces

Eyepiece Projection - Astronomy Sourc

The bench is an x-y-z table that lets you move the iPhone in 3 directions: x motion (left and right): The x-plate is a custom-machined aluminum plate with a long slotted hole. Loosen the black cap screw, slide the plate, and lock it down. y motion (up and down): Edmund Scientific sells a low-priced lab jack, around $180 Astrophotography Accessories. 0.8x CCD Telecompressor for 92mm Stowaway and Traveler. Requires 2.5 DoveLoc End Cap that comes with 92mm F6.65 Stowaway or EC2725 for Traveler. (92TCC) 0.8x CCD Telecompressor for 92mm Stowaway and Traveler Meade Variable Projection Tele-Extender 07348. The Meade Variable Projection Tele-Extender allows you to do high magnification eyepiece projection photography with your camera body, a compatible t-ring, a 15 mm to 32 mm diameter 1.25 eyepiece, and your Schmidt-Cassegrain or Maksutov-Cassegrain telescope If you take your astrophotography seriously have a good look at our new VariMax Pro-Series projection adapters. VariMax are the largest variable eyepiece projection adapters in production.. anywhere. They are so large a standard eyepiece projection adapter fits inside it! You can now use your larger more expensive eyepieces, even Zooms The VariMax II Pro-Series Eyepiece Projection Adapter lets you use your bigger, better 2 Eyepieces for Projection Astrophotography. VariMax II is the largest Eyepiece Projection adapter in production.. anywhere. It can hold 2 Eyepieces with an Upper Body Diameter of up to 2.8 and an Upper Body Height of 4.8 . This unit (without T-Rings, Eyepiece or Camera) weighs in at almost 20 oz so it is.

Capture the night sky with advice and links to purchase the best astrophotography gear, DSLR cameras, and telescope accessories 1.25 2x Barlow (TKA00597) Takahashi. 1.25 2x Barlow (TKA00597) Vendor Takahashi Regular price .96 Eyepiece Projection Camera Adapter.96 Eyepiece Projection Camera Adapter Lumicon. Lumicon. Vendor Lumico MAPUG-Astronomy Abbreviated Astro Terms. A page that includes designs and manufactured items by list members for battery power boxes, 2-D counterweight systems, scope transporters, scope covers, RA/Dec drive upgrade/fix kits, observatories, wedges, wedge/tripod stablizers, permanent piers, & miscellaneous items It enables you to do astrophotography with your DSLR camera in two different possible ways. The first method is called eyepiece projection photography. You first remove the eyepiece from your scope. Place the eyepiece inside this Variable Projection Photo Adapter by Meade, and fasten it in place with the set screw provided Barlow change the focal length. eyepiece cause amplification. With change of focal length of telescope you have an increase of resolution. Aparent amplification. For astrophotography with projection toward sensor of a camera the image from barlow (with good quality or small spheric distortion) will have always better definition than eyepieces. The typical techniques are to use eyepiece projection or Barlow lens projection. I use Barlow lens projection with a homemade or Celestron NexImage web cam astrocamera. This provides a simple system that just slips into the focuser and gives me enough magnification for some very nice images

After World War II, the barlow lens became a standard tool for multiplying from 1.5 to 3 times the magnification of eyepieces (for objectives with focal ratios longer than f/6); the Smyth lens was adapted to correct wide angle field curvature in 20th century lens designs — the 110° military binocular eyepiece developed by Tronnier in 1943. A 2x barlow thus doubles the focal length and the magnification of any telescope. If adding a barlow still doesn't produce enough magnification, there is always eyepiece projection. In eyepiece projection, the camera takes a picture of the image in the telescope eyepiece. In theory, it's just a matter of using the eyepiece that delivers the. A Barlow lens is an excellent way to increase the magnification of a given telescope enough to get good sized images of planets, and may yield better results than the more complex Eyepiece Projection method of increasing magnification. Supporting the Weight. You may encounter another surprising problem as you venture into astrophotography

You won't be able to use a barlow in this situation unfortunately. As for increasing magnification, you can use a barlow to increase but it would have to go where your eyepiece would normally go. Or you can use a technique called eyepiece projection (if you have enough range of focus with your focuse knob). There are a number of ways you can do. A 32mm Plossl is a 1 ¼ eyepiece that generally has an apparent field of view of about 49 degrees or so. As I mentioned above, it will give you just about the largest field of view in an eyepiece in a 1 ¼ format. The Celestron Luminos 31mm eyepiece is a 2 eyepiece that has an 82-degree AFOV If you choose to use eyepiece projection a lot of the newer style or big eyepieces will not fit into the tube. You are better off using things in Prime focus and let the scope do the magnification and if you want more magnification use a barlow. Image train for prome focus should be Camera-t adapter-variable adapret set to prome focus mode. Optics: f/6.3 Barlow lense (reduces f to 6.3, focal length to 1200mm) So now I am wondering, what if I mount two f/6.3 Barlow lenses behind each other, will the focal length then get multiplied by the factor 0.63*0.63=0.3969? This way it would be possible for me to capture some of the wider entities The 16mm 68° eyepiece is 62mm tall, 43mm wide and weighs 158g (5.5 oz.). The eye relief is around 12mm with a field stop diameter of 18mm. Although the focal length is smaller, the 14mm 82° eyepiece is the larger of the two. It is 83mm tall, 48mm wide and weighs 256g (9.0 oz.)

My first telescope was a 90-230 mm zoom lens with some of the optics from an 8 mm movie projector lens mounted in a film can for an eyepiece. This was improved upon 2 years later in 1976 when I obtained an inexpensive 400 mm lens (dubbed a girl watcher lens by the manufacturer) Solar projection method with 60mm refractor telescope and 17mm eyepiece. Below: Waning Crescent Moon at 5:37 AM CDT July 3, 2013 (10:37 UT). 8″ reflector telescope, 25mm eyepiece. At the neighborhood park, at dawn on July 3: Above: A mother Mallard and half-grown ducklings heading towards the water

The eyepiece I recommend is Orion's 25mm .965 Explorer II. It sells for $29.95 plus S+H. The catalog number of this item is #8130. This eyepiece will provide a magnification of 36 power in your telescope. This is a low magnification, but don't be fooled by the term low. Low magnification IS what you want for this telescope Twice this projection angle (2β) is the apparent field of view (AFOV) produced by the eyepiece. The AFOV, as the image the eyepiece creates of its own field stop, never changes regardless of which telescope, barlow lens, field flattener or coma corrector the eyepiece may be used with

Useful Formulae - Wilmslow Astr

Sorin says: March 13, 2015 at 5:47 PM. The simplest way to start with a DSLR is with a 1.25″ t-adaptor and a t-ring for your camera model. The t-adaptor slots into the telescope inplace of the diagonal and eyepiece, and connects to the camera body directly with the t-ring (replacing the lens on the camera) Barlow lenses are widely used in telescopes. It is a very efficient way of increasing the magnification of your tool. The lens is simply placed between the eyepiece and the mirror or objective lens. The result of this action is pretty astonishing. The magnification can be doubled if the 2x lens is used and triples it if a 3x lens is placed in a. Barlow Lens. Another piece of equipment you can drop down inside the variable projection camera adapter to get 2x the magnification. Steve uses the Meade #126 Barlow Lens - Doubles the Eyepiece Power that runs about $40. Camera Settings For Shooting Through A Telescope. How do you figure out what settings you need to use to shoot through a.

What is eyepiece projection and how do I do it? - BBC Sky

Picture made with a 6 Newton Telescope and a Philips ToUcam 740K + Baader IRB filter. The effective focal length used was 3600mm, N=24.0 (eyepiece projection with a 17mm ploössl). Magnitude : 0.5: 300 seconds AVI: Distance : 8.1568 AU: 1/25 sec exposure @ 10fps: Diameter : 20.4 Gain : 50%, Brightness : 50%: Altitude : +55°41' Gamma : 0%. When you select focal lengths for your eyepieces, keep in mind the effect of your Barlow lens [Hack #46]. For example, if you already own a 20mm eyepiece and a 2X Barlow, it makes little sense to buy a 10mm eyepiece because a10mm eyepiece duplicates the effect of using the 20mm eyepiece with the Barlow I need advice on how to connect, if possible, my DSLR to the eyepiece so that I may use a Barlow lens vs connecting to the back of the SCT with a T-ring adapter. Jupiter and Saturn are just tiny dots in the resulting photo to pull any details out. My scope is a Celestron 6 SCT with a Nikon D7500. TIA for any advice Typically these come in two basic sizes. The smaller is 1.25 inch, the larger is 2 inch. 2X is most common but I think Televue makes also 2.5X, 3X and 5X. One first attaches them to the bottom of the primary telescope eyepiece. Then the combined a..

The best eyepiece brand to photography: Astrophotography

in general, to compensate, add 1 f-stop for 1sec, 2 f-stops for 30sec & 3 f-stops for 120 secs. for a great pic of stars in a dark sky, the following are approx. equivalent exposures on an f/2 lens: 15 minutes with 400ASA = 30-60secs with 1000ASA film! therefore try using fast film such as: color slide film Using the 35mm Panoptic with our 2 Big Barlow, the diverging field rays exiting the Barlow introduced vignetting and some image degradation by extending the eyepiece's eye relief. The positive doublet interface I inserted between the Barlow and the 35mm Panoptic brought the field rays back to parallel and solved the problem Meade Series 4000 Plössl 9mm Illuminated Reticle Eyepiece (1.25), wireless #07068. This special purpose eyepiece for guiding during long exposure astrophotography features high quality 4-Element, fully-coated Plössl optics and a fully illuminated double-crosshair, with two concentric targeting circles Eyepiece Projection Effective FL for eyepiece projection [mm]: Commonly recommended values are 1.5 to 2 for long exposure and 0.2-0.25 for short exposure astrophotography pixel pitch in micrometers Which barlow or focal reducer should be used to achieve a specified desired (optimal) image scal

My favorite 1.25″ midrange Barlow lens is the Celestron 93529 X-Cel LX 1.25″ 2x Barlow for around $65. These Barlows, and the matching eyepieces, are my favorite in this price range and I have a full set in my eyepiece case. They are fully multi-coated providing great views, well built to last a long time and have an awesome rubber grip. Astrophotography, also known as astronomical imaging, is photography of astronomical objects, celestial events, and areas of the night sky.The first photograph of an astronomical object (the Moon) was taken in 1840, but it was not until the late 19th century that advances in technology allowed for detailed stellar photography.Besides being able to record the details of extended objects such as.

Always remember that your eyepiece is half of your telescope - there's no point buying a Ferrari and then not putting the wheels on! Choosing an eyepiece can be a daunting task, especially if you're not familiar with how telescope optics work. We sell a range of high-quality eyepieces, with universal sizes to fit in any telescope, regardless of brand 1.25 Color Filter Set (6 pieces) 1.25 Color Filter Set (7 pieces) Accessory Kit Telescope Fully-coated eyepieces 1.25 Astronomical Telescope Accessory Kit 1.25 Plossl Eyepiece Set (6, 12.5 and 20mm) 1.25 Plossl Eyepieces with 2x Barlow Lens Ultraviolet (UV) filter/Methane (CH4) filter/Infrared (IR) filter. Telescope Adapter L2 - Eyepiece. L3 - Camera lens. Afocal photography, also called afocal imaging or afocal projection is a method of photography where the camera with its lens attached is mounted over the eyepiece of another image forming system such as an optical telescope or optical microscope, with the camera lens taking the place of the human eye Celestron NexStar 130 SLT is very popular telescope amongst the beginners, so I have decided to do a complete review of this telescope. I have already made a review of an almost identical telescope from SkyWatcher. In the past, I was considering buying both these telescopes, so I know them well. Let's talk about the [

Open Box FLI AD-1 Adapter - DF-2 or CFW to 2-inch SCT Thread FL-AD1-OPEN. $133.88 $169.99. You save 21%. Used Meade 12 LX600 ACF Telescope with Starlock UT-15103. $5,999.99 $6,159. You save 2%. Used Stellarvue SFF60 Field Flattener for 480-700mm Telescopes with Adapter UT-15037. $185. You save 2% The Artesky Planetary SW eyepieces with a field of view of 60 ° are ideal for planetary observation, lunar and deep-sky objects as well as for eyepiece projection with a DSLR camera or afocal photography via smartphone.They are available in focal lengths of 3.2mm to 9mm and 1.25 'sleeve. Moon and planets: These Okualre provide a very high-contrast image, especially along the optical axis Eyepiece 19mm Extra Flat 65°. $99.00. Astronz. Eyepiece 19mm Extra Flat 65°. $99.00. Quickshop. Contact us for availability Thanks, Terence, for laying the myth of the degrading Barlow to rest. A high quality Barlow must be properly designed and manufactured in order to avoid compromising a telescope's color and spherical aberration corrections. The invisibility of Tele Vue's 2-element Barlows has been noted in test reports in the astronomy magazines Welcome to Telescopes 101. August 11, 2015. Backyard astronomy is a fun and rewarding hobby that can entertain you and your family for a lifetime. But, like many hobbies, getting started can seem a little complicated. Whether you're trying to choose your first telescope or want to learn the basics of the night sky, our team of experts at. Description. For photography of the moon, planets and stars through a telescope using 1.25-inch eyepieces, this Meade camera adapter is a must. It accepts an eyepiece that will, in turn, project an enlarged image onto the camera film plane, allowing you to take a picture. Each camera adapter requires a separately purchased T-mount ring for the.