Infrared Photography

[GerryDavid]

What lens are best for reducing that hot spot effect?

I have a 50mm F1.8, 85mm F1.8 and of course the kit lens 17-55 or something like that.

 

[icassell]

What lens are best for reducing that hot spot effect?

I have a 50mm F1.8, 85mm F1.8 and of course the kit lens 17-55 or something like that.

I was trying it with my Tamron 17-50mm f2.8 and got nothing useable at all.

 

[Josh66]

What lens are best for reducing that hot spot effect?

I have a 50mm F1.8, 85mm F1.8 and of course the kit lens 17-55 or something like that.

Try every lens you have wide open.

I've never seen a list that shows which lenses have it and which don't (if anybody knows of a list like that, please share...).

I've found that my kit lens (18-55) has it, the 50mm 1.4 has it if you're stopped down (it's not noticeable wide open), 70-200 f/4 L doesn't seem to have any hot spot.

A few examples of what the "hot spot" is:

50mm f/1.4 @ f/11

50mm f/1.4 @ f/1.4

18-55mm Kit lens @ f/10 & 18mm

I know they're not the most interesting, and focus might be off - but they show the effect I'm talking about.

 

[icassell]

Try every lens you have wide open.

I've never seen a list that shows which lenses have it and which don't (if anybody knows of a list like that, please share...).

http://heim.ifi.uio.no/~gisle/photo/ir.html