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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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    High fixed-mag option for Swaro scope - advice needed

    Just got some eyepieces.... the Nagler Zoom 6-3mm won't reach infinity focus with the 80HD. It focuses about 100ft like the Pentax. The ones that work are: TV Nagler 5mm TV Nagler 3.5mm TV Radian 3mm TV Ethos 3.7mm You might find more by looking at column F in the specs...
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    High fixed-mag option for Swaro scope - advice needed

    I tried a Pentax SMC XW 7mm. The scope (ATM 80 HD) won't focus to infinity with it. It focuses around 100 feet or so and it's very crisp with a nice wide field, generous eye-relief and it's fogproof. What a nice eyepiece. I should be able to try several Tele Vue next week.
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    Need best large scope head.

    I tried the Swarovski FH101 head with and without the telescope rail. I can comment on the rail quickly so I will start with that. It is very nicely made but only serves to rebalance the scope on the head when there is a substantial camera attached (such as when using a TLS800 and a DSLR)...
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    High fixed-mag option for Swaro scope - advice needed

    I tried a 10x21 binocular on my 80's eyepiece. This is not a serious thing, but here's a picture of the tip of a fir tree at 250x. Keep in mind I hand held a binocular in one hand and the camera in the other hand. What I see is of course some bad chromatic abberation. The biocular is a...
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    High fixed-mag option for Swaro scope - advice needed

    Thanks for the advice. That makes sense. I thought I might appreciate the simplicity of use, not needing to change eyepieces, but it stands to reason that the performance is compromised and for my purpose that's not helpful at all. I do have the Nagler zoom on my list to try. I'm hoping to...
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    Need help/advice with Swarovski and Panasonic

    I found the problem is the Panasonic DMW-LA4 holds the camera lens too far away from the eyepiece when the camera lens is zoomed full (the lens retracts). It needs to be this long to protect filters and other accessories (wide angle adapter etc) when the camera lens is zoomed out (the lens...
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    Need help/advice with Swarovski and Panasonic

    I have a Swarovski ATM 80 HD and a Pansonic DMC LX-3. I bought them seperately for different purposes but I thought I'd try them together. The Leica D-Lux 4 is derived from the Panasonic LX-3 and Leica sells an adapter for the Televid for this camera. It works in a similar way to the...
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    High fixed-mag option for Swaro scope - advice needed

    I've been following this thread as I have the ATM 80 HD with 25-50x eyepiece. The zoom eyepiece definitely covers the sweet spot for my observing and gives a wide field which is very important to me and why I passed on 60 and 75x options (with other scopes). However, I'm interested in higher...
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    IR UV cut filter for CA in scopes

    Since I don't believe the fluorite APO scopes correct CA for IR and UV wavelengths, skewed IR in particular could play some havoc on CCD or CMOS sensors. Since the pocket point and shoot cameras were not designed with super telephoto lenses in mind, they might not block ir and uv at the sensor...
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    hat: bucket or brim, kids' sizes

    I read several good hat threads on here and I was hoping to get a little more specific advice. I'm looking for some new hats for this summer. I'm accustomed to wearing a French pith helmet, hand made in Vietnam. It works great -- best hot and sunny weather hat ever. Two problems are it's a...
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    New Vortex Viper HD 15-45x65 and 20-60x80 spotters coming soon

    I'm somewhat keen on the picatinny rail, but optics are more important to me. The funny thing is Zeiss actually make a nice red dot sight that doesn't fit on their scopes. http://www.zeiss.com/c1256bcf0020be5f/Contents-Frame/ea0375ea5f622762852576bf00660b78 I considered gluing a rail on the...
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    Carrying Case for Swarovski scope

    Billingham 550 or 555. On a budget, there's the Domke. Both started from fishing bags and are intended for cameras/lenses. The Domke's a little more stealthy/low key for public transport. The 550 would probably carry everything you have. Both lines have smaller sizes if you want to get...
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    Leica APO-Televid 82 v. Swarovski ATM 80 HD

    No worries. Considering I'm more astro than birding, your gear comprises interesting choices. You're using astro scopes for birding, and I'm using a birding scope for astronomy. How about that. There's no question you get an optical advantage with that gear, but whether I'm birding or going...
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    Leica APO-Televid 82 v. Swarovski ATM 80 HD

    I think I already described why I prefer 25-50x to the other choices from Leica, Swarovski and Zeiss. I primarily observe celestial subjects, birds less so. To recap, I like the wide apparent field of view particularly at lower powers where it is often difficult to get. The image brightness...
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    Swarovski stay on case

    What do you think? I'm looking for one of these. I came across the older one easily. The newer one might be a little harder to find since retailers probably have stock of the old one still. Is it improved? Or redesigned for more profit? The obvious things are the slimmer trim around the...
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    Need best large scope head.

    Thanks for the advice. I've kept the 80 HD and I'm going to try the FH101 with Swarovski's rail system. I did see the Dutch test thanks to the link. If it doesn't work out I will try either the larger Gitzo or Manfrotto. The reason my 3001 is working is because I only extend one or two legs...
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    Celestron C5

    I evaluated one just last month. I replaced the Celestron diagonal with a Tele Vue 2" Everbrite mirror diagonal and an Ethos 13mm eyepiece. The optics are low quality. It came with collimation about as good as I could get it myself but I wasn't satisfied with the amount of angular distortion...
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    Leica APO-Televid 82 v. Swarovski ATM 80 HD

    Comparison of Leica APO-Televid 82 and Swarovski ATM 80 HD I also show this comparison with photos at: http://leicavswarovski.wordpress.com/ Leica APO Televid 82 The box, case, and eyepiece tube tell you immediately that you are handling something well made. The fit and finish of the product...
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    Need best large scope head.

    I have a Leica Televid 82 and a Swarovski 80 HD here and I'm going to choose between the two. The Zeiss didn't get a call because I wanted wide angle views not 75x, but otherwise I bet the latest Diascopes are awesome. I'm still doing side by side testing with the Leica and Swarovski. They're...
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    Barn Owl Webcams 2011

    Just saw the bebe. Very nice. We had a huge bump on the rodent population here last year. The hawks and owls were just gorging themselves. I'm seeing more screech owls now and I think we'll have a bumper year from now through spring.
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    Leica, Swarovski, Zeiss, latest zooms parfocal across range?

    Thanks for the responses. It's good to know. Now I understand that even if the eyepiece were designed to be perfectly parfocal, if the viewer's eye were myopic or hyperopic, without corrective lenses, they would necessarily have to refocus to compensate, adding or substracting their dioptric...
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    Cost of going off Birding.these days.

    It's all wilder than Scotland here in the Great Basin of the US, but if I found me self in London pining to bird I would get a Leica and go street birding. You know, digiscope some pigeons eating chips in Trafalgar Square but change my sensor out for some Tri-X for that gritty urban Auduboner look.
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    Interpupillary distance and FOV

    Interesting question. Ultimately, the exit pupils of the eyepieces have to land on the pupils of the viewer or we'll have a problem. Supposing you have very tiny exit pupils and large dialated pupils on the viewer, you could shift the exit pupils closer together or farther apart across the...
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    Travel scope - recommendations, please.

    I would ask someone with experience in Kenya, not just one trip or never been. If you're going on your own, you may or may not have a good opportunity to use it depending on whether your plans favor a scope and whether they work out the way you think. If you have someone in country that has a...