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

Recent content by Fedster

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    Does anybody sell tested scopes?

    5% to 10% more
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    Does anybody sell tested scopes?

    As by subject: are there any sellers that order NEW scopes from a manufacturer, open the box, star test the scope, check resolution against a standard, and then (1) send back the lemons, and for the scopes that are OK (2) give said info to the buyer? I know it is a hassle, but I would pay...
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    Swarovski ATC vs ATS 65

    I never trust any review based on ONE sample scope. I will not get that sample to start with, and even assuming the standard deviation around the performance of a scope is small (it should be from Swaro), cherries and lemons do exist in the real world. That video fails to actually check whether...
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    Spotting scope aperture and heat waves. Seeing?

    How did you do the actual testing? and, did you just go to a shop and run the gamut of their scopes?
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    Small and light scopes ...

    Small and light? what about folding scopes? I have an Optolyth Mini 25x70 BGA/WW and I could not be happier. Make sure you dry it before closing it and you're good to go. The Meopta TGA with the 30x objective is likely more available, and I guess is as good or better.
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    Video review (english subtitles) of Zeiss Dialyt 18-45X65

    Quick question: how 'obviously NOT wide angle' does this scope feel? to give you an idea, I have a Swaro ATS, and I cannot use the 20-60 zoom, it feel way too much like looking through a paper tube -- the 25-50wa zoom is more acceptable to my eye. I do a lot of walking around when I do not...
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    Video review (english subtitles) of Zeiss Dialyt 18-45X65

    Nice, and the best part is I do not need the subtitles!
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    CTC 30x75 question?

    I just received an Optolyth Mini 25x70, which works on the same principle but has a minimum focal distance of approx 5 metres, wide angle. It packs small, it is reasonably light, it is slow to focus (but it takes just one hand), no slop. I can hold it acceptably steady by hand alone, using a...
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    Depth of field and f-stop of scopes

    Hello, if I look at a camera lens, it has a f-stop value (which corresponds to the largest aperture, since the lens has a diaphragm that can make the aperture smaller). A fast aperture lets a lot of light in but has a shallow depth of field (thing are out of focus if they are even slightly off...
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    CTC 30x75 question?

    I would be surprised it had any play at all anywhere. I would also be surprised one would need 2 hands to focus it -- the focusing happens at the eyepiece, and you need the other hand on the body (if you are not using a tripod). The drawbacks I see are: (1) extended is pretty long, (2) no HD...
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    Swarovski ATX-115: Star-test and Resolution Measurements

    With a statistician's hat on, that just means pushing the average up so it is "indistinguishable" from the performance of "cherry" optics. The alternative, making a lot of ATX 115 and only sell the ones above the 95th percentile in performance (or however we define optics to reach "cherry"...
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    Light, straight, and wide angle spotting scope

    Thanks! The MM4 ED is interesting, but the FOV at 15x is 46.5, vs the 50 metres at 25x for the Optolyth! (the info about the Opticron ocular is from here: Opticron SDL v3 zoom eyepiece - 41270 The Birders Store). The ED50 with the 20x Wide MC is on the other hand a possibility. Too bad about...
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    Light, straight, and wide angle spotting scope

    Hello, I am looking for a light (~1kg), straight, and wide angle spotting scope. The Kowa 554 fails the wide angle, otherwise I would consider it. The closest thing to what I am looking for is a Optolyth Mini BGA/WW 25x70mm, but the optical quality (lack of ED glass), and the low light...
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    Straight or angled scope

    I used to think straight was better, and I did own a straight Swaro HD65. I then borrowed an angled Swaro HD80 and I found I like angled better. The moral of the story being, if you can borrow some scopes and try them (just concentrate on how they feel is they are different models, the optics...
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    Lightes fluid head for Swaro ATX 85

    Thanks! can you use it with the stay on case? Maybe I am overly cautious but I would rather keep it on (I assume you just turn the collar on the scope and place the head in the notch to simulate a fluid head?).
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