EXCERPT page containing first few paragraphs. 2024-05-09 00:46:50
UA_SEARCH_BOT_compatible_botmozilla/5.0 applewebkit/537.36 (khtml, like gecko; compatible; claudebot/1.0; +claudebot@anthropic.com) @ 18.118.166.98
For full access, subscribe here. Or click title to login. 
Canon 70-300 f/4.5-5.6 DO IS USM
One sample tested briefly. Unsharp corners even at f/11, backfocus, and hot spots make this lens a non-starter for IR work.
Canon 70-300mm f/4.5-5.6 DO IS hot spots
Brief outdoor shooting showed strong hot spots. As backfocus and resolution appeared to be marginal, no further consideration was given to the lens.
Article continues for subscribers...
Diglloyd Monochrome is by yearly subscription. Subscribe now for about 8 cents a day.
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!
Diglloyd Infrared Photography covers cameras and lenses for infrared photography.
The coverage explains all the issues involved in shooting for monochrome and in infrared. It is not a review of any particular camera or lens, though many examples are included.
- Monochrome vs color cameras.
- Post processing for monochrome.
- Guidance on workflow for infrared, including black and white and channel swapping for false-color images.
- How infrared renders, and why certain spectral cutoffs matter: false color vs black and white.
- Image quality issues to be on the lookout for in infrared.
- Numerous lens evaluations in infrared.
View an overview of infrared as well as filter spectral transmission plus examples from an optimal lens.