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

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  1. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    Raw files are big and can backup your disk, yes! Personally, I use this method for photos (this applies to my "serious" shots of things, I am much more lenient with personal snapshots with family or friends). I use Lightroom as it has an easy and fast way to reject photos then delete them...
  2. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    There's another setting to disable beep (I always do that!). I tend to use the arrow keys to select things on the Info menu, though really I don't use the Info menu that much as it requires looking away from the viewfinder. I'm more of a knob and button guy. Marc
  3. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    Thank you. It's mostly a serious hobby for me. I think if you can keep the ISO low and speed high you'll get shots you can crop quite a bit, even if you shoot JPEG out of the camera. I don't have exact numbers for that camera & lens, but probably ISO 400 or less and 1/640 or higher. You'll...
  4. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    First, I'd go shoot what you have, the d5600 + 70-300 AF-P. At 450mm without cropping (equivalent) you should be able to get some good stuff, especially if you can crop maybe 2x - 3x more. If you can shoot at a good ISO (say ~400 max) with fast shutter, you should be able to crop a lot. The...
  5. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    Ah, that's too bad. Yeah, I always watch out for someone saying it has a store warranty or such and always ask when buying 2nd hand. Did you get to shoot it at all? How did you like it? Marc
  6. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    Digital has a lot of advantages, but simplicity is not always one of them. I think on this topic, in particular, the marketing and common usage of saying "crop factor increases focal length" or calling it the "focal length multiplier" has done a disservice and added a lot of confusion. If it...
  7. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    This section of a wikipedia article has a great graphic illustrating a crop sensor vs a larger sensor using the same lens. It shows the idea of the image circle on the left that is where the sensor would be. An FX lens, for example, would be the red lines and a DX sensor would be the black...
  8. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    The focal length of a lens is a physical property of the lens. It is a measure of the distance from the lens to the focal point (where the lines converge). A 300mm lens is always a 300mm lens (the actual distance can differ a little depending on the lens formula). The focal length does not...
  9. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    I use the LensCoat on mine. It's ok, not great. The Tamron has quite a few narrow rings so the lens coat has many pieces and they sometimes get squished together. Nothing that makes the lens not work, but just a bit annoying. I'm thinking of just removing the small piece over the focus ring...
  10. M

    Tamron 2nd generation SP 150-600mm Di VC USD 'G2'

    It's a pretty easy lens to use. Camera-wise (in other postings), I use M for fixed speed and aperture with auto-ISO, AF-C with 3D tracking, spot exposure (+0 ev when background visible, +0.7 to +1.0 ev for backlit BIF shots). I also often shoot in Qc (quiet continuous) with electronic front...
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