Astro-Tech AT130 EDT f/7 ED Triplet OTA

$1,899.00

Availability: More on the way

Some observers feel that the Astro-Tech AT130EDT 5.12" f/7 ED triplet apochromatic refractor compares favorably in performance to scopes nearly four times its price. We won't go quite that far, but we will say that the AT130EDT is an exceptional performer and an exceptional value.
Our Product #: AT130EDT
Astro-Tech Product #: AT130EDT
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Product Description

This new Astro-Tech AT130EDT refractor has:

• 130mm f/7 fully multicoated triplet apochromatic optics using an ED center element
• a dual-speed 2.5" rack-and-pinion focuser with 10:1 ratio fine focusing
• hard sided protective carry case
• a rotatable focuser
• a camera angle adjuster
• retractable lens shade/dew shield
• dual hinged split tube rings with a Vixen-style dovetail

There are competitive 130mm-range apo scopes that can cost up to $6500 and more. Do they perform nearly four times better than the Astro-Tech AT130EDT to justify the price difference? That's up to you to decide. But while they can cost nearly four times as much, many observers will be hard-pressed to justify the cost difference between those other scopes and the Astro-Tech AT130EDT. To our minds, that makes the Astro-Tech AT130EDT an exceptional value.

The Astro-Tech AT130EDT's slow-polished triplet optics, ED glass center element, and state-of-the-art optical multicoatings are even more impressive when you consider the package they come in. The finely-machined scope has a dual-speed 2.5" rack-and-pinion focuser with a microfine 10:1 fine-focusing ratio. The focuser can rotate a full 360° to put your camera or eyepiece in the most comfortable observing position. In addition, a built-in camera angle adjuster lets you fine-tune the composition of your astrophotos. The supplied 2" and 1.25" eyepiece holders use non-marring compression rings that won't scratch your eyepiece barrels.

This feature-laden 130mm Astro-Tech ED triplet apochromatic refractor offers optical and mechanical performance nearly the equal of scopes many times its reasonable price. No matter how you look at it, at the price, the Astro-Tech AT130EDT is an absolute steal!

Features of this Telescope . . .

ED apochromatic triplet refractor optics: 130mm (5.12") aperture, 910mm focal length, f/7 focal ratio. It uses an ED (Extra-low Dispersion glass) center element to reduce spurious color halos and fringing to vanishingly low levels. All three lens elements are slow-polished for smooth surfaces, with less scattered light.

Fully multicoated optics: The triplet objective lens has the latest state-of-the-art antireflection multicoatings on all air-to-glass surfaces for high light transmission and excellent contrast. This can easily be seen by looking into the objective lens of the scope. Virtually no reflection of your face will be seen. It's a sure sign that the high transmission coatings are doing their job, by letting virtually all the light enter the scope, rather than reflecting some light back to your eye.

Internal light baffles: Contrast-enhancing knife-edge light baffles in the 140mm diameter optical tube provide truly dark sky backgrounds and high terrestrial contrast. The edges of the lenses are blackened to reduce internal reflections and further improve image contrast.

Dew shield: A self-storing retractable dew shield slows the formation of dew on the lens in cold weather to extend your undisturbed observing time. It also improves the contrast, similar to the effect of the lens shade on a camera lens, when observing during the day or when there is excessive ambient light at night, such as from a neighbor's backyard security light.

Dual speed 2.5" rack-and-pinion focuser: The precision-made focuser has dual-speed focusing. There are two coarse focusing knobs. The right knob also has a smaller concentric knob with a 10:1 reduction gear microfine focusing ratio. This provides exceptionally precise image control during high magnification visual observing and critical CCD imaging.

The focus knobs have ribbed gripping surfaces so they are easy to operate, even while wearing gloves or mittens in cold weather. The focuser drawtube has 75mm of travel and a millimeter scale on the drawtube to let you return to an approximate focus when switching between visual and photographic setups. A lock knob under the focuser lets you lock in your photographic focus.

The 2.5" focuser can be rotated a full 360° to line up a camera in either a landscape or portrait orientation (or any orientation in between), as well as put a star diagonal and eyepiece into the most comfortable observing position. Simply loosen the knob on the top of the focuser housing, rotate the focuser to whatever angle is most convenient for you, and then tighten the knob to lock the focuser at the desired angle.

Built-in camera angle adjuster: In addition to the entire focuser rotating, the focuser drawtube's 2" eyepiece/accessory holder includes a built-in camera angle adjuster that lets you quickly make final small adjustment tweaks to the angle of your camera or star diagonal without having to disturb the heavier focuser proper. This camera angle adjuster is standard equipment, not an optional extra-cost accessory, as it is with some other scopes.

The Astro-Tech AT130EDT allows imaging with a DSLR or CCD using an APS-C or equivalent sensor (29mm diagonal) with no vignetting. Adding the dedicated reducer/field flattener, #ATREDT30, will allow imaging with a full frame DSLR (43mm diagonal sensor) with only minor vignetting at the corners of the image.

A knob on the 2" eyepiece/accessory holder lets you unlock the accessory holder, rotate it to the desired final angle, then lock it in place at whatever angle is most convenient for you. Many observers will find this camera angle adjuster to be even more convenient that the focuser rotation system and will use this method of adjusting the viewing angle exclusively.

Compression ring eyepiece holders: The focuser's 2.5" drawtube terminates in a 2" eyepiece holder that uses a non-marring compression ring to hold a 2" star diagonal and/or accessories in place. The compression ring won't scratch the barrel of your star diagonal and accessories as an ordinary thumbscrew can.

A supplied 1.25" accessory adapter slips into the 2" eyepiece holder to let you use a 1.25" star diagonal, image erecting diagonal, or photographic accessories. Like the 2" eyepiece holder, the 1.25" adapter also uses a non-marring compression ring to hold 1.25" star diagonals and accessories in place.

Optical tube: The 32.4" long optical tube and focuser (37.5" long with lens shade extended) are finished in a durable white and black powder coated finish, with black anodized trim. There is a finderscope mounting shoe that accepts Vixen-style finderscope mounting brackets. The shoe can be mounted on either the top left or top right side of the focuser body. A slip-on metal dust cap is standard, as is a dust seal for the eyepiece holder.

Tube rings and dovetail: Dual split hinged tube rings are supplied for the 140mm o. d. optical tube. The rings are lined with white felt that will not stain the white finish of the scope over time, unlike the black felt supplied with other scopes. A 9.7" long Vixen-style dovetail is bolted to the tube rings. Optional Losmandy-style D-plate dovetails are available if your mount uses a wider Losmandy-style saddle.

Hard Case:  The Astro-Tech AT130CA hard case is designed to hold the Astro-Tech AT130EDT 130mm triplet ED apo refractor. It measures 35" (889mm) long, 10.25" (260mm) wide, and 11.25" (286mm) deep including the feet that prevent the case from resting directly on the ground.

The aluminum-framed case has three locking latches and a spring-loaded handle that lies flat when not being used to carry the case. The rigid protective foam inside the case is die-cut specifically to hold the AT130EDT scope only, without accessories. The case weighs 13 pounds (5.9 kg).

Tech Details

Aperture 130mm
Binary and Star Cluster Observation Very Good
Focal Length 910mm
Focal Ratio f/7
Galaxy and Nebula Observation Good
Highest Useful Magnification 260x
Lunar Observation Great
Weight 19 lbs.
Planetary Observation Very Good
Resolution 0.89 arc second
Telescope Type Refractor
Visual Limiting Magnitude 13.1
Warranty 1 year

Reviews

Review by:
I love this scope! Works great for visual and astrophotography. This telescope has great glass. Stars are pinpoint clear. I have it mounted on an Orion Atlas Pro. It works great! (Posted on 10/31/2019)
Review by:
I love this scope for astrophotography. High quality workmanship. Great views. Love the hard side case that keeps scope protected. (Posted on 10/7/2019)
Review by:
I bought an AT130-EDT a few months ago and have used it only for astrophotography. The pinpoint details of the stars in my photos is amazing. I can't say enough about the excellent optics in this refractor. You won't find a better triplet refractor at this price. (Posted on 10/5/2019)
Review by:
I got this from a club member, so its used. I use it for Planets and large DSOs-Globulars are awesome-I can mag up no problem, and Jup/Sat are stunning as well. Has the be the best bang for the buck in refractors, and I can't imagine ever parting with it. (Posted on 10/4/2019)
Review by:
I was one of the first recipients of this outstanding telescope. The build quality is excellent, with a nicely snug retractable dew shield, beefy and robust focuser, and a footer that's perfect for a number of finder scopes. The glass isn't comparable to anything in this price range. I think, after months of research prior to purchasing this scope, that there is no better option available at this price range. Additionally, I firmly believe that quality quickly deteriorates as you move downwards in price, but there is very little room for improvement as you move upwards. This is one of the finest refractors available and may be the definitive choice in this price range. (Posted on 7/22/2019)
Review by:
I bought my AT130EDT from the second batch in 2016. For a few months I used it purely for visual observing, getting great views of Jupiter and Saturn as well as very clean and crisp views of many double stars and deep-sky objects. Then, I bought the Astro Tech focal reducer and field flattener combo, designed specifically for this telescope, and started doing imaging with a DSLR camera. It was as if I had discovered a second nature for this telescope. The images are crisp and contrasty, the colors are pure and the coverage of the APS-C frame is really good. The f/5.6 photographic ratio is fast... in short, I love this telescope as an imaging machine. One should, anyway, consider its weight and mount it adequately... a 45-lbs class mount looks appropriate for a DSLR setup, and maybe a 60-lbs class mount for heavier cameras with filter wheels. (Posted on 1/13/2019)
Review by:
Absolutely love this scope. I use it strictly for photography, with the recommended field flattener, and could not be happier with it. Contrast is top notch, stars are pinpoint, focuser is smooth as silk and works great with my Sesto Senso focus motor. (Posted on 1/8/2019)
Review by:
I bought this scope from the first run a few years ago. It is a well build scope with a nice smooth focuser. It is a little front heavy but that is to be because of it being a triplet. It shows nice star colors, super sharp and tight. I have not noticed any CA. I beleive this is the best value in the 5" class. So glad I bought it. (Posted on 1/8/2019)
Review by:
I was lucky enough to be on the very first shipment of this fine intrument. This is the one of the greatest telescopes I've had the pleasure of looking through. It combines some of the highest quality lenses with very robust equipment to ensure your setup is compatible with a number of accessories or equipment. Comparing the cost/value to similar sized telescopes, this is unequivocally one of the best options on the market today and likely will be for years to come. Thank you, Astrotech! (Posted on 1/3/2019)
Review by:
I own and love the AT 102ED but I wanted a little more reach, so Pete suggested the 130. All I can say is "wow" this is a great telescope. The optics are remarkable and my images have improved as a result. Can not wait to get to some darker skies! (Posted on 12/24/2018)
Review by:
I recently purchased the AT130EDT. I am impressed so far. It looks well built and I like it's looks. Since it's purchase, I have yet to look thru it. (new scope curse.) So more to come. (Posted on 12/10/2018)
Review by:
I live in the area and have stopped by on several occasions. I asked a milion questions before buying and they were very patient. I wanted a higher contrast image than I was getting with my 30 year old orange C-8. I have been very pleased with the AT130EDT, and the suggested accessories. (Posted on 10/14/2018)
Review by:
I am the proud owner of an Astro-Tech 130mm f/7and a Astro-Tech 80mm f/6 refractors.

Each of these refractors have smooth & solid focusers, retractable dew shields. Overall they are very nicely built using quality materials.

Both were delivered as promised and in excellent optical alignment. BE aware the 130mm is little heavy so make sure to eat your breakfast.

Since I am mostly a visual astronomer, I use an Alt-AZ mount that allows me to easily setup and quickly view planets, stars and deep space objects from my backyard.

In the near future, I hope to learn how to do astro--photography and with these two excellent refractors, I think I’ll be ready! (Posted on 10/9/2018)
Review by:
The Astro Tech AT 130EDT is every thing it is advertised to be. An excellent value for the dollar and it punches very close to the scopes that cost 6 times as much. I had the best view ever of the Pleiades using this scope and an AT Paradigm eyepiece. Build quality is top notch too. A can't go wrong scope. (Posted on 10/8/2018)
Review by:
I bought one new 2 yrs ago from Astronomics. Build quality was excellent. I was quite impressed with the optical quality ... excellent. I've owned many apos in the past ... AP, TEC, Tak .... and would be happy to keep the AT130 as my only scope.
(Posted on 10/8/2018)
Review by:
I managed to pick up one of the last of the original shipments of the AT130 EDT f/7 telescope w/ the field flattner. The optics and build quality are right up there with the competition but this units is only priced at $1799. I've used it for astro-imaging and have been very pleased with the results. The unit is very front heavy so balancing is critical. The optional case is of excellent quality. (Posted on 10/7/2018)
Review by:
This scope is a great value for the size and build. I have used this for visual use with no buyer's remorse. Eventually, I will use this for AP; however, I am simply enjoying this for both daytime use with a Quark Daystar and nighttime visual use with a binoviewer. It is front heavy, so make a plan for balancing it on your mount accordingly. (Posted on 10/6/2018)
Review by:
I’ve always wanted a 5”+ refractor but did not want to settle for an achromat and most apos seem to be out of my price range. I received Astronomics email announcing the impending arrival of the 130s. Based on the description and other reviews it sounded like the deal I was looking for. I was not disappointed. I’ve owned it now for month and a half and taken to a star party and a couple of outreach meetings and everybody agrees the views are great and that price is a great deal. I love the included diagonal. Much better than what I was expecting. Focuser is smooth. If it included the case and a finder it would be perfect. (Posted on 10/6/2018)
Review by:
I have had the AT130EDT now for about 2.5 years, about 1 year after they were released. I read several user reports and spoke to owners and never read anything that may have raised a red flag. If you can afford a $7000+ 130mm F7 refractor then go get it, however if you are like me and like a value then take a strong look at this scope.

All the components of this scope are very high quality including the optics. This scope is not light however considering it is a F7 Triplet it isn't heavy either. If you are going to be using it for visual you have a lot of flexibility on the mount you select. However if you are going to be using it for AP work then spend some time studying mounts until you find one that can easily manage this telescope and the AP gear.

The extras that come with it make this a true bargain and the accessories that are available for it are just as high quality as the telescope.

The customer service with Astronomics is great. If you want to take a look at some photos taken from this telescope go to Cloudy Nights or the other AP site that hosts photos. I seriously doubt you will be disappointed. (Posted on 10/6/2018)
Review by:
I thought I had a fine scope, but it's always reassuring to hear complements from more experienced astro nerd friends and vendors they liked the view that AT130EDT and Televue eyepieces were giving. Very clear. :) Will be trying with astrophotography soon. (Posted on 10/6/2018)
Review by:
The 130 EDT has been my go-to refractor for both visual and EAA since I took delivery from the first shipment delivered to the US. The optics and build quality are impeccable, and it has never failed to deliver. One of the best values out there for a refractor in this class, IMO. (Posted on 10/6/2018)
Review by:
Love my 130! High contrast with razor sharp views. Build quality is quite good. Not a hint of CA. Astronomic has a reputation for proving a good value and this is no exception. It is a bit nosy heavy (being a triplet) so you should factor that in when thinking of mounts. It's marginal on something like an AVX.

All in all, a great scope for the price. (Posted on 10/6/2018)
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