DPReview.com is closing April 10th - Find out more

Irix 15mm f/2.4 with EF-RF adaptor

Started 10 months ago | Questions thread
Sittatunga Veteran Member • Posts: 5,406
Re: Irix 15mm f/2.4 with EF-RF adaptor

vtzerpos wrote:

I recently bought a Canon RP camera with the original Canon EF-RF adaptor. Checking how my EF lenses work with the adaptor (and they do work fine), I noticed that with my Irix 15mm f/2.4 Firefly there is no focus confirmation, as it was the case when I used this lens with my previous DSLR camera (Canon 6D mark II). I am still using this lens with the camera in the AV (Aperture Value/Priority) mode and I can still change through it the aperture, which means that there is indeed communication between the camera and the lens through the adaptor, but still I don't get the focus confirmation as in my DSLR. Is this a limitation of the EF-RF adaptor or do I have to change something in the settings of the camera?

Thanks in advance for your help.

VT

I think it's a limitation of the RP, in that the R (and presumably the other RF mount cameras) brings up the match-triangles focus aid (if you've enabled it) when a lens is detected that hasn't got AF switched on. I don't have an RP to check this. In the absence of that focus aid, I find that scale focussing is the quickest method, and precise enough beyond arm's reach with a lens that short. If the subject's closer than that I can use a tape measure. The depth of field scale on the lens will give you an idea of how precisely you need to estimate the distance for each aperture. Choosing a focus spot and then magnifying it 10× in the viewfinder is the most accurate method. Using focus peaking can be precise enough if I stop down a couple of stops, but I find it slower than scale focussing.

Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow