Upgrade the memory of your 2019 iMac up to 128GB
Filter—Hoya R72 Infrared Pass
Graphs are in nanometers. Visible light is approximately 390 - 650 nm (the human eye can see very weakly into the 700-800nm range). Graphs used by permission of Coastal Optical System.
A great source for filters at competitive prices is B&H Photo. Get filters at B&H Photo.
Spectral transmission — Hoya R72 infrared-pass
The Hoya R72 (50% cutoff at 720nm) is another good choice for infrared, but it can be more expensive than the B+W 092, especially in larger sizes. Get the Hoya R72 filter at B&H Photo
Hoya R72 infrared-pass
Save the tax, we pay you back, instantly!