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Sigma 150-600mm Contemporary + 1.4x extender vs Canon RF800mm F11

Started 3 months ago | Questions thread
rreichar Regular Member • Posts: 212
Re: Sigma 150-600mm Contemporary + 1.4x extender vs Canon RF800mm F11
3

I used the Sigma with and without the 1.4 TC for about a year. I owned the 600 and 800 f11 lenses for a couple of months. For me the Sigma was fine for birding but it does pulse in and out of focus in servo mode. For me it was very heavy. The weight is further forward as well due to the RF to EF adapter and the TC. I ended up selling all 3 and bought the RF 100-500. It is very sharp so I haven’t missed the added reach. I have it on an R7 now. The only issue I had with the 600 and 800 was the long minimum focus distance. One day while using the 600mm on my R6 I watched a Green Heron eat a snake a few feet in front of me. It was too close to focus on and I couldn’t back up without going into deep water. I was so disgusted that I listed both lenses on eBay that night. Both lenses were great performers outside of the long MFD. Don’t expect much with the Sigma and the TC. I found that the TC really affected sharpness and focus speed. Because of that I rarely used it. For me the flexibility of the zoom would likely win out but I got some really nice shots with the f11 lenses.

 rreichar's gear list:rreichar's gear list
Panasonic LX100 Panasonic Lumix DC-G9 OM-1 Olympus Zuiko Digital 2.0x Teleconverter EC-20 Olympus Zuiko Digital 1.4x Teleconverter EC-14 +2 more
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