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Recent Posts
- Canon lenses- Resolution Versus Aperture
- Noise Reduction – Canon EOS R
- Color Gamut – Epson Ultrachrome K3 vs HD Inks
- Noise Test – Canon 5D Mk IV
- Exposure Recovery – How much is possible?
- Dynamic Range Test – Canon 5D Mk IV
- Neutral Density Filter Test
- Eclipse 2017- Easley-Greenville, SC
- Canon Lens Extender Tests – Upgrade from Version I to Version III?
- Canon EOS 5D Mark III versus Canon EOS 5D Mark IV
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Category Archives: Tech Talk
Canon lenses- Resolution Versus Aperture
When Reikan Technology’s FoCal application was recently updated to provide support for the Canon EOS R, it opened up a whole new avenue to test lenses for aperture sharpness. Since the EOS R is mirrorless, and its focusing pixels are … Continue reading
Posted in Blog, Photo Topics, Tech Talk
Tagged Canon EOS R, Canon lens sharpness vs. aperture, Canon Lenses, FoCal, microfocus adjustment inaccuracy, resolution comparisons--older vs. newer Canon lenses
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Noise Reduction – Canon EOS R
I recently purchased a Canon EOS R and noticed that there were provisions there for high ISO noise reduction, just as there were in my previous Canon 5D MK III and 5D MK IV cameras. As I had never used … Continue reading
Posted in Blog, Photo Topics, Tech Talk
Tagged Adobe Camera Raw noise reduction, Canon EOS R, High ISO image noise comparisons, in-camera noise reduction, RAW image files
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Color Gamut – Epson Ultrachrome K3 vs HD Inks
I recently purchased an Epson SureColor P800 desktop printer. Since it features the new 8-color Ultrachrome HD inks that are claimed to have a wider color gamut [the entire range of colors that can be produced by a given device] and … Continue reading
Noise Test – Canon 5D Mk IV
In a previous post, Exposure Recovery-How Much Is Possible, we explored the result of under and over exposing an image at ISO 400 by 5 stops without any adjustment. Then we looked at the result of trying to recover these … Continue reading
Posted in Blog, Photo Topics, Tech Talk
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Exposure Recovery – How much is possible?
In a previous post, Dynamic Range Test – Canon 5D MK IV, we illustrated that 8 stops appears to be the practical dynamic exposure range of a current well-regarded DSLR camera. Now we wish to take a look at what … Continue reading
Posted in Blog, Photo Topics, Tech Talk
Tagged Canon 5D Mk IV, Dynamic Range, Exposure Bracketing, Exposure Recovery, L*ab Color, Macbeth Color Checker
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