BBF can let you to focus and lock the main subject first and then you can recompose the frame you like. You can use either BBF or shutter button on "continue focus mode" to take flying birds

NOT at all! I don't care all of above!

Yes, I see what you meant, it's the hand grip, and in there is the battery compartment. The leather covers over it that makes me to hold the camera steadily and comfortably.

No, Df doesn't have a built in grip nor grip at all. The cover you saw is the battery and memory card compartment cover at the bottom!

It also comes with a wrist strap as shown, I use it instead of the neck strap. I found it at Amazon.

Yes it is, I don't have to remove the case while I need to change the battery or remove the memory card, even when I use the tripod. The case was well made with high grade of leather. It has never left my camera.

I have this half leather case on my Df, it feels very comfortable in my hand.

I took some Sun set images without any filter, I just wait for the right moment of the Sun when it reached the position that it's intensity was low, and I set the low ISO; aperture at f11, slow shutter speed on tripod.

I also took the Sun at mid day with Mylar Solar filter, I took some Solar eclipse pictures.

(Download)

Can a new section as " IR photography" be set in the UHH forum?

I have the 590nm too, it creates very vibrant color, because it allows some visible light passing through. If you swapped the red/blue channel in PP, the foliage will be come bright orange/yellow instead of purple, the sky will be in darker blue. But this is only my taste! Thankyou for sharing!

Did you convert your Canon R5, or you just put the 690nm IR filter on top of your lens, if it is the case, the image surely will disappoint you, because the IR blocking filter (Hot mirror) that was built in your Canon will block most of the IR ray plus your 690nm filter will block the visible light below 690nm.

Jerry, you mean the 70-210? Why do you want to take it apart? It was/is a fine zoom with 1/2X macro/close-up ( not true macro 1/1X),mine has Nikon F mount, I use it on my Df for flower imaging with in a couple feet.

I have the Vivitar 70-210mm f3.5 ser.-1 and 100mm f2.8 macro, plus the Vivitar 285HV flash. I use the70-210 for close up flower shot with my Nikons.

Trying to take micro images with connecting camera to a microscope.

Objects chosen were: fish food flakes; Grain of sugar; polyester fiber.

May you tell me what kind of additional filters you used to improve the performance, what kind of performance do you mean? You know the more filter you add on the lens the more degrading to you image, why didn't you converted your camera to full spectrum at first step, and then use different nm of different IR filter to archive what you would like to have. For example, you add a 720nm on top of your already converted camera with 590nm, then the IR ray of 590nm will be blocked by the 720nm filter, so the 590nm in the camera doesn't do any thing to your final image that will be the image from the 720nm not by combination of both! The only result will be a degrading image. Same as using the 830/850nm, the image will be just back and white, no color at all./850
I have 590nm; 680nm, 720nm, plus 850nm to work on my self home converted P&S compact camera. I like the operating of this simple set up. Good Luck and Happy Shooting!