Recently, there has been discussion and concerns regarding the Canon EOS-R and Long Exposures.
The way the story (wrongly) goes is that the EOS-R has an internal IR light that will fog any long exposures or exposures at a high ISO. This is not the case. I have been shooting with the Canon EOS-R now since October of last year and I know this to NOT be true. However, there is still This cloud of incorrect information being disseminated.
So to make this quite simple, I have a set of test images to show you.
For this test, the EOS-R was placed in a black bag with the body cap on and a series of images were captured. By using a body cap and isolating the camera in a black bag, any light or fog on the frame will be from the inside of the camera itself.
For the first exposure, we went with ISO 6400 and a 30 second exposure. Here is the result. This raw file was converted using Canons Digital Photo Professional, and no adjustments were made to the file.
The second test image, we doubled the ISO to 12800, again for 30 seconds in a Black bag. Here is the result.
Finally, we moved the ISO to 40000, once again with a 30 second exposure inside a black bag. There was no light or fog produced by the camera.
So, what have we found? Two things, First, the Canon EOS-R is good to go with long exposures in Infrared, and Second, once again there is unfortunately Wrong information on the internet.
Please note: This test was completed using a Canon EOS-R converted to Infrared by Life Pixel. I cannot speak to how a camera converted by any other company will perform.