I love my TV 13mm T6, and use it frequently with long focal length SCTs as well as faster Newtonians. Very well corrected, no edge of field brightening, and an immersive viewing experience. Also, I am impressed with the eye relief. I wear eye glasses while observing, and had thought about purchasing the TV 12mm T4 for its reputed comfort/eye relief, but have found the 13mm T6 to be more than adequate in this regard. Highly recommended. (Posted on 10/28/2019)
This is my favorite eyepiece to use with my 16 inch f4.5 DOB. Nice field of view and tack sharp image. Also use with 9.25 inch SCT which works great but no comparison to the DOB view. (Posted on 10/17/2019)
I recently bought a TV 13mm Type 6 from Astronomics.
The sharpness, contrast, and 82 degree field of view are all phenomenal! Thanks to Al Nagler and Astronomics for a
Superb product!
Mark Dearing (Posted on 9/13/2019)
This is my go-to high power eyepiece for my HD1100 SCT. It is very comfortable to view through, great contrast and with amazing clarity right to the edge of the field. (Posted on 9/9/2019)
Excellent product. The contrast and sharpness of the fov is amazing compared to other products of lesser quality at a lesser price. Comfortable to use and fair eye relief when wearing glasses. (Posted on 7/22/2019)
One of my all time favorite occulars. Works in all of my scopes equally well and also beautiful in design. A very good balance of eye relief, fov, sharpness and contrast. Go for it! (Posted on 1/14/2019)
Like others, there's a lot to like about such a wide, well-corrected FOV in such a compact package ... not least of which being I can use it freely without worrying about being asked how much I spent on it. ;)
The wide FOV also makes it easier (more forgiving) for my kids to view at higher magnifications. Very happy with this eyepiece. (Posted on 1/14/2019)
This eyepiece packs the excellent Nagler view into a very compact package. I am blown away most of the time when I look through this thing. The 82 degree field is huge, especially conserving how small the eyepiece is. Performance is excellent; I use this in an 80mm f/6 refractor and it is sharp across the entire field with no sign of false color. At 13mm focal length, this eyepiece strikes a good balance between magnification and exit pupil to produce images with great contrast. It is a great choice for general viewing in any scope, really. (Posted on 1/8/2019)
Doesn't really have any weaknesses. Comfortable and easy on the eye. Nice light transmission, so works well on dim DSO's. Gives sharp, contrasty solar system views in my variety of different scopes. I really appreciate the small size and weight, which makes it hassle-free to use in a small grab-and-go setup (no need for rebalancing as with heavier EPs). One star off, only because I am not blown away by the view, as with an Ethos. I think this EP is a little pricey, but if you can get it used or on sale, go for it. Even at full retail, you won't regret it. I have other EPs in this FL range, and I have thought of selling my 13mm T6 Nagler, but I just never do... it's just too solid of a performer. (Posted on 11/26/2018)
Nice eyepiece that provides great eye relief which is key. Good way to move up in magnification from a 26mm if you do not own already own a barlow (Posted on 11/3/2018)
I sold my original 13T6 Nagler and regretted it for a couple of years until I bought another one. I'll not be making that mistake again. Though I currently own 2 different 13mm 100 degree eyepieces including an Ethos this 13T6 will stay in my primary observing kit alongside the survivor of the testing between the other two. This 13mm T6 Nagler is one of the very finest eyepieces. You should probably have one. (Posted on 10/30/2018)
Sharp, wide, lightweight, reasonable eye relief, good contrast - the list goes on. I can't find any fault with this eyepiece. Along with the 11mm it's my favourite Nagler Type 6. Works great in all scopes whether a fast Newt or refractor. (Posted on 10/27/2018)
Review by: James Htchinson
There are better eyepieces out there, but none offer better value in my opinion. For me, it's the Nagler line, and the 13mm is the crown jewel of the series. It features legendary Teleview quality, and it's not too light. It's beautifully crafted from high quality materials. It's got stellar optics not but it's not too heavy. It's delivers razor sharp images right to the edge of that superb 82° field of view. (Posted on 10/25/2018)
This is my favorite mid-low power eyepiece to use in my refractors. 13mm is the lightest in this series, and provides fantastic wide field views. Eye relief is comfortable without glasses, as mentioned in another review. If I had to give up all my Type 6 eyepieces except one, this is the one I would keep. Nothing else comes close in this form factor. (Posted on 10/16/2018)
If you're looking at this eyepiece, odds are you already know the Nagler reputation. Crisp, clear, wide, well corrected. But unlike some in the series, it's not a huge, heavy grenade. It's a keeper. (Posted on 10/6/2018)
Review by: William Weiland
Really one of the most wonderful eyepieces I've used (out of a few dozen); I find the 82 degree FOV to be about optimal and the clarity and sharpness across the field is breathtaking. One aspect I particularly enjoy is the small size and light weight - almost feels like a Plossl and won't upset the balance of a smaller scope/lightweight mount. I'm not a fan of huge, heavy eyepieces. There's also something about the mechanical quality and design of this eyepiece I enjoy. One caution - in my opinion, the eye relief is just right if you don't need to wear glasses; if you're a full-time eyeglass wearer or you observe under very cold conditions you may prefer more eye relief. (Posted on 8/4/2017)