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Switching back to R5... help needed

Started Jan 30, 2021 | Discussions thread
RDM5546
RDM5546 Senior Member • Posts: 3,654
Re: Switching back to R5... help needed

RDM5546 wrote:

mKotar wrote:

Quick question:

how many fps you get on mechanical shutter with 120-300 and did you calibrate/update this lens with sigma dock?

Is AF performance close to EF 70-200/2.8 mk2 ?

thanks

The Sigma 120-300f2.8 EX fps is around 7fps mechanical (flashing white H++) and it uses 100% of sensor for focus area (not 80% or 60% of some lenses).

I have the Sigma Doc but never calibrated or updated this lens. I worked well so I saw not need. This is the EX version I have that predates the newer "Sport" version which may focus faster. It is weather sealed better too. I would likely get Sport if I were buying it again. The EX optics are very good though so no reason for me to upgrade.

Maybe tweaking the firmware would speed up the FPS but I am happy since I use electronic shutter much of the time anyway. Electronic shutter is 20 fps. No observed rolling shutter in the R5 so far. My EF400f2.8 is awesome at 20 fps using the electronic shutter too.

I have been using the 1.6X crop mode for increasing the reach.   The R5 puts out 20MP images in crop mode and the quality is excellent.   The Move crop mode allow you to increases the reach with very good 4K IQ IMHO so the the Sigma 120-300f2.8 and 2X TC using 4K video crop is very good quality and has 960mmf5.6 reach in 4K video with no thermal time limits in the movie crop mode!!   This combination is relatively lightweight 4K hand holdable or easy to use on tripod/monopod which much better for video stability.

 RDM5546's gear list:RDM5546's gear list
Canon RF 100-500mm F4.5-7.1L IS USM Canon G5 X II Canon EOS 70D Canon EOS 7D Mark II Canon EOS 5D Mark IV +47 more
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