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

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  1. gary1952

    Review by 'gary1952' on item 'EF 500mm f4 IS L USM'

    I also own the Sigma 300mm f2.8 EX DG and 500mm F 4.5 EX DG lens. As well as the Canon 300mm F2.8 IS and 500mm IS of course. The Canon smokes the Sigma hands down. Don't wast your money. I am selling my Sigma this year. Amazing quality and optics. Pretty much what everyone else says.
  2. gary1952

    Review by 'gary1952' on item '500mm f4.5 APO EX'

    I use this lens and the 300mm f2.8 for birding. With the K-5 Pentax i find it a good set up. The 500 is superb for me. Light weight and compact. Sharp enought for birding for sure. I decided in this in the Pentax mount because i travel alot. And wanted screw focus all mechanical. I am not sorry...
  3. gary1952

    Review by 'gary1952' on item 'K-5'

    I use this body for birding and wildlife only. Coupled with the Sigma 300mm f2.8 and the Sigma 500mm f4.5 lens. This is a pretty good combo now. I was in a panic with the K-7. It is still sitting in my bag unused. I used the K-x exclusively until the k-5. I only shoot during the day and evening...
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