Just lurking on this thread enjoying and interested in the overall impressions.
Just lurking on this thread enjoying and interested in the overall impressions.
5DS R, 1D X, 7D, Sigma 10-20mm f/4-5.6, 24mm f/1.4L II, 16-35mm f/4L IS, 24-105mm f/4L, 50mm f/1.8, 100mm Macro f/2.8L, 70-200mm f/2.8L IS II, 100-400mm f/4.5-5.6L, 580EX-II
flickr
Yup. The thing that got me thinking IR might be too low-res to use as freely as the "color" channels, is that on the IR birding page I linked to, all the standalone IR imaging devices are super low-res. 1) 208x156 @ $250, 2) 80x60 @ $350, and 3) 384x288 @ $1600
Part of the price on the "high-res" one is going to be because it IS a very niche item, but if resolution was as cheap for IR as it is normal sensors, why wouldn't any of these companies had made higher-res devices? I'm thinking that adding IR pixels isn't as easy as RGB pixels. Canon has likely added just enough to help.
On Flickr - Namethatnobodyelsetook on Flickr
R8 | R7 | 7DII | 10-18mm STM | 24-70mm f/4L | Sigma 35mm f/1.4 | 50mm f/1.8 | 85mm f/1.8 | 70-300mm f/4-5.6L | RF 100-500mm f/4-5-7.1L
I have a 5D MKIII that has a modified sensor to detect infrared light with a frequency of 715 nanometers. It retains all the resolution of the original sensor as well.
I think the infrared light detected by thermal or heat sensors is in a different range of the IR spectrum and perhaps hi res sensors are not as practical for those frequencies?
So this gets into wave vs photon theory with light, but just pointing out 715 nanometers is 0.715 um and the pixel dimensions of the 1DX III are 6.58 um x 6.58 um, assuming gapless configuration (not a bad assumption with the microlenses). I do not know the depth of pixel "bucket", but my point is that we are not actually that far off in the size of pixels from the wavelengths of light. I could see some interference for longer wavelengths such as IR. This isn't even getting into wave amplitude, which in a quick search I didn't find.
Pierre
My Flickr gallery
Laguna Seca Ranch is on my list with or without a 1DX III
Thanks.
Work got in the way of life. For about 6 years I would head to the airport on Monday morning and get home Friday - every week. So I had the weekend to get things done around the house and spend time with my wife. I really did not have time to pick up a camera.
I got sick of that and retired. So I hope to get back to some photography. We'll see how that goes.
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5DS R, 1D X, 7D, Sigma 10-20mm f/4-5.6, 24mm f/1.4L II, 16-35mm f/4L IS, 24-105mm f/4L, 50mm f/1.8, 100mm Macro f/2.8L, 70-200mm f/2.8L IS II, 100-400mm f/4.5-5.6L, 580EX-II
flickr
Jonathan Huyer
www.huyerperspectives.com