p.1 #1 · (Infrared) What zoom lens will give you the best results not to have hotspots Infrared
Need help to find a zoom lens to use with my Canon R not to give me hot spots
I have the RF 24-105mm f/4L IS USM Lens and its bad
I love the 24-105 reach IDK if anyone use the Sigma or other then Canon lens
Thank you
p.1 #5 · (Infrared) What zoom lens will give you the best results not to have hotspots Infrared
epphoto wrote:
Thank you
I already have the 24-105mm RF and its bad on hotspots
I like to highlight agreement between real world (what you said) and online info (the database). Consistency helps to establish credibility, although Zolari is already pretty credible (which doesn't help much, if you don't know them).
I was interested to see that a couple of my EF-M lenses are in the good performer category (not shown in the part of the db that I copied and posted above). That's a way-ahead for my M5/M6, after the EF-M line gets dropped (i.e. five seconds after the first APS-C RF camera is announced).
p.1 #6 · (Infrared) What zoom lens will give you the best results not to have hotspots Infrared
"hotspot" is only 1 of at least 2 problems with IR and lenses. The second being poor resolution in the mid frame to corners (smearing). The online databases only cover Hotspots. Keep in mind the degree of "hotspot" varies as well. Some are correctable and some are not.
The only wide angle Canon zoom lens that i have found that has an easily correctable "warm area" and has sharpness across the frame is the 16-35mm III. This is the lens I use. I include the 16-35mm F/4 (smearing), the 24-105 F/4 original (smearing), the 24-70 F/4 (smearing), the 17-40 F/4 (smearing), the 24-70 F/2.8 II (uncorrectable hotspot) in that analysis. As well, the only longer lens that I would recommend is the 70-200 F/4 non-IS (just recently discontinued).
Acceptable primes would include the EF 50mm F/1.8 (original or STM), 40mm pancake, and the 35mm F/2 IS.
In the first pic below, you will see an uncorrected "warm area" on the 16-35mm III which is not very noticeable and can be corrected in post.
p.1 #7 · (Infrared) What zoom lens will give you the best results not to have hotspots Infrared
Exactly the reason why I kept my Canon EF L lenses for optimized IR performance with my IR-converted 5D MkII. I would be angry if bought a much more expensive RF 50/1.2 L lens which performs poorly compared to its older EF 50/1.2 predecessor lens in IR (love shooting this lens wide open and stopped down in IR).
