Author Topic: Viltrox speed booster, EOS M+ ML. Works fine with old FD lens+ FD>EF mount?  (Read 248 times)

dragonsfire1981

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Hi everyone,

So I came across a couple of videos where the EOS M owner achieved a full frame RAW video with ML. Using the Vitrox speed booster. https://amzn.to/2VGRxZp

In this video the guy says he's using a a Tamron adaptall 35-70mm f3.5. I found out the adaptall is a very old manual lens that requires a seperate adaptor (or two?) to be able to fit an EF mount.

https://www.youtube.com/watch?v=rJsMftoZ6KA&t=2s

So assuming this is the case, there would be no problem doing something similar with an old FD Canon lens with an FD> EF converter which is much more common?


Walter Schulz

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Re: Viltrox speed booster, EOS M+ ML. Works fine with old FD lens+ FD>EF mount?
« Reply #1 on: September 15, 2021, 03:33:58 PM »
Full frame RAW never was a problem. All cameras able to record MLV/RAW can do. Problem is what happens with the pixels. (And recording bandwidth = Continuous or not). It has absolutely nothing to do with lenses or lens mounts/adapters as long as image circle is bigger than sensor diagonal and flange distance is met.

And because most FD-to-EF adapters do have a disputable image quality because of mediocre glass inside: Why not using a FD-to-EF-M adapter? M mount comes with a very short flange distance and adapters are quite cheap and some people prefer working with EOS M cameras and vintage lenses.
If you ask because you own an EF or EF-S camera: If you are happy with a certain amount of image degration using a lens equipped FD-to-EF Bob is your uncle.

Caveat: All FD-to-EF adapters without optical element will make focus to infinity impossible.

dragonsfire1981

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Re: Viltrox speed booster, EOS M+ ML. Works fine with old FD lens+ FD>EF mount?
« Reply #2 on: September 15, 2021, 08:43:18 PM »
I only have the EOS M, so I was asking the question based on getting the Viltrox speed booster, to fake a full frame resolution, of which the Viltrox mount is EF to EF-M. I was looking at the FD lenses simply because I saw some relatively cheap/old prime lenses listed on Ebay. I already have a bunch of EF lenses, which is the easiest solution anyway, but was just looking at the other lens options.

I'll consider an FD to EF-M adapter as well, as I was unaware there was one. 

>>Full frame RAW never was a problem. All cameras able to record MLV/RAW can do.
Are you saying there is another way to generate a full frame image with the EOS M with ML, can you clarify this statement?

Also do you have any idea about the original Adaptall lens mount? After a quick search, I couldn't find anything, though there was an Adaptall II to EOS-M mount.

Full frame RAW never was a problem. All cameras able to record MLV/RAW can do. Problem is what happens with the pixels. (And recording bandwidth = Continuous or not). It has absolutely nothing to do with lenses or lens mounts/adapters as long as image circle is bigger than sensor diagonal and flange distance is met.

And because most FD-to-EF adapters do have a disputable image quality because of mediocre glass inside: Why not using a FD-to-EF-M adapter? M mount comes with a very short flange distance and adapters are quite cheap and some people prefer working with EOS M cameras and vintage lenses.
If you ask because you own an EF or EF-S camera: If you are happy with a certain amount of image degration using a lens equipped FD-to-EF Bob is your uncle.

Caveat: All FD-to-EF adapters without optical element will make focus to infinity impossible.