RF 70-200 or EF 70-200 with Converter for EOS R

ZX11 wrote:

RDKirk wrote:

ZX11 wrote:

I don't like the air pump design of the new RF 70-200 and its far higher price for the same image quality. To me, the EF 70-200 on the EOS R is a better choice. To each their own.

Interestingly, nobody seems to be reporting problems with the "air pump" design for the 24-70 or the 24-105...and it hasn't been a problem for decades. It appears to be a design Canon perfected a long time ago.

After reading Roger Cicala's disassembly report on the RF 70-200, I have no reason to doubt its solid mechanical prowess.

https://www.lensrentals.com/blog/2019/12/the-not-very-long-awaited-teardown-of-the-canon-rf-70-200mm-f2-8-is/

I have seen the video on youtube.

Hasn't been a problem for decades? The EF-S 17-55 f/2.8 does have a problem with dust getting in it due to the huge volume of air it pumps in and out as it zooms. It is not a decades old design. Similar dust with the EF 24-105.

No other air pump lenses get dust in them? Seems there are plenty of youtube videos about getting dust back out of Canon's air pumps.

I do not have to like the RF's air pump design just because it is the newest greatest hip thing. I do not think Canon was mistaken when they designed the all internal design on the EF 70-200 f2.8 and the EF 70-200 f/4.

I don't like fiddling with the lock on the RF 24-105 that is necessary for its air pump design. Do I have to like it too? I don't like the extra rotation range the RF 70-200's zoom ring has. The extra rotation needed to move the RF 70-200's large front element, entire barrel, hood, and the kitchen sink, forward and back.

I like the non-pumping, non-moving inner barrel, and thinner design of the EF 70-200. The EF is solid, sealed, and proven reliable. My choice. To each their own.

Ah, yes, the 17-55. Truly one of the worst lenses in Canon’s history for build quality and dust. That is a *great* comparison to a 2019 $2700 L lens with extensive sealing and filters. You must be a scientist.