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RF 400, or EF 400 with adapter?

Started Jul 11, 2021 | Discussions thread
bernie r Contributing Member • Posts: 536
Re: RF 400, or EF 400 with adapter?

dgumshu wrote:

John Sheehy wrote:

bernie r wrote:

So you’re saying that used mk3 EF 600mm f/4’s are selling for half price? Certainly not that I’ve seen. Used mk3’s seem as rare as hen’s teeth. Now, mk2’s yes they have gotten very affordable but then there are more differences than AF speed between that and the new models.

Only real difference is the size and weight, aside from that you'll be getting the same resulting image, I don't see a point to paying $13,500 for a RF 600 f4 when you can get a used EF 600 f4 MK2 for $7000.

But do what you want to, if weight is worth over $6,000 to you, that's fine.

We don't know that it is just weight; the RF AF and stability may be better. Without some more comparative facts, we can't tell what the extra $6K buys you (besides new-ness and lower weight).

Link Taken from another thread... looks like the extra 6K will buy a fuzzier picture too with 1.4 tc:

https://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=1556&Camera=1508&Sample=0&FLI=1&API=1&LensComp=748&CameraComp=979&SampleComp=0&FLIComp=1&APIComp=1

I'm oddly not surprised, I'm not switching my EF 500 f4 for awhile...

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Camera:
Canon EOS R5
Canon RF 15-35 2.8
Canon RF 28-70 2
Canon EF 70-200 2.8
Canon RF 85 1.2
Canon EF 500 f/4 L IS II USM + 1.4X III
Other:
Gitzo Fluid Gimbal Head
Gitzo GT4543LS Systematic Series 4 Carbon eXact Long Tripod
Benro Mach3 TMA38CL Carbon Fibre Tripod
Benro G3 Ball Head
Canon Speedlite EL-1 Flash
Canon Speedlite 470EX-AI Flashgun
Gitzo Adventury 45L

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