Re: Adapter to control discontinuity on EF lens
I am ownership an instant camera that takes EF lenses but does not have whatsoever electronic connectors to the lens. This ways I tin can’t control aperture on my old lenses.
Does anyone know of an adaptor ring that gives ef lenses transmission aperture settings?
The aperture is set electronically, and so the just way of using the lens’ iris without electronic contacts is to set the discontinuity on a Canon DSLR, printing the stop downward button and remove the lens without switching the photographic camera off or releasing the stop down button. Put it dorsum on the DSLR to change the aperture and repeat.
Some mirrorless photographic camera EF lens adapters have their own mechanical diaphragm which lets you lot make a guess at the aperture you’re setting. At that place are likewise some expensive adapters (mainly Fringer, Metabones and Sigma) for some mirrorless cameras.
Probably easier to drill holes in lens caps for various f-stops, and swap lens caps to go the right exposure. Ideally you use a drill press with an x-y bed and so you lot can drill out the exact center. You lot’ll then need to de-burr the hole.
Yous might exist able to buy pre-made sets.
Panasonic Lumix DMC-FH8
Canon EOS 20D
Canon EOS 90D
Catechism EF 20mm f/2.8 USM
Canon EF 28mm f/1.8 USM
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Pro Tip: Don’t Try an STM Lens
If you call up the electronic discontinuity is a problem, you lot’ll actually hate the electronic focus of the STM lens. No mechanical focus at all.
Canon EOS R5
Catechism EF 50mm F1.four USM
Catechism EF 85mm F1.viii USM
Canon EF 16-35mm F2.8L II USM
Canon Extender EF 1.4x II
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