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

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  1. O

    Canon 60d Sharpness loss

    Hello Everyone, hoping you can help with this problem. My Canon 60d seems to have lost some of it image quality since I bought it, the picture seem to be slightly blurry. Its not a horrifying but noticeable. I even changed the lens thinking it was that but saw the same issues. Even when I am at...
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    Please take off your lens cap

    So I have been waiting all weekend for my Canon 100-400 all weekend ,finally got it this evening . Watched it ,talked to it, the usual thing . Turned around the lens hood and proceeded to take some pictures. After 10mins of wondering if I got a bad lens and reading the manual. I finally decided...
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    Lens repair

    Hello to everyone, I have a Sigma 150-500 and I think its lost some of its sharpness since I first bought it. It has been ruffed up a bit (bounced about in my car). I do not believe that anyone in my country is qualified to do repairs on this lens ,so I will have to send it somewhere. I was...
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    Reproduction Ratio and Telephoto's

    Hello to everyone, I am hoping that you will be able to impart some wisdom on me so please excuse the novice question. I understand reproduction ratio's concerning Macro lenses but am not sure how it affects zoom lenses. If I was to compare a Sigma, Canon, Tamron etc , all with an end focal...
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