Trusted Optics. I tested the 70-200mm f/2.8L IS III USM with Canon's most demanding camera, the 50MP EOS 5DS R, and Imatest software. At 70mm f/2.8, the lens puts up scores that we qualify as very The weight difference to the new 70-200 f/2.8L is the adapter only. It is also the height of the adapter taller. Here is a size comparison curtesy of camerasize.com. Adapted EF 70-300mm f/4-5.6L IS vs. RF 70-200/4L IS and RF 70-200/2.8L IS. Edit: Also have the control ring based adapter so I get that functionality already with the EF lens. The optical path of the new Canon EF 70-200mm f/4L Mk II has now been completely redesigned in the new lens, to improve image quality and reduce the minimum focus distance from 1.2m to 1.0m. A top-quality fluorite glass element teams up with two UD (Ultra-low Dispersion) elements, aiming of boost sharpness and contrast, while still reducing The f/2.8 lens shows a bit of softness at f/2.8, which improves upon stopping down, until it is sharp at f/8. The f/4 version, however, is fairly soft at all aperture settings, with mild improvement at f/8. My friend has the 70-200 F4 and I have the Tamron. I got to compare them. The Tamron is sharper and has better bokeh. Low-light performance might not interest you but a faster lens means faster shutterspeeds, a good point for action photography. That being said if the lens is susceptible to be put in rough conditions, the Sony is better built A lower f-stop (such as f/2.8 or f/4) will result in a brighter image by letting more light through. However, when you open up the aperture like this (f/2.8 or f/4), you’re going to get a much shallower depth of field. This is where you’ll get that infamous bokeh you’ve come to know and love. The Sigma 70-200mm f/2.8 Sport will be available in Canon EF mount in just a few days, with the Nikon F mount shipping shortly after. You can pre-order your lens here . This is one of the nicest feeling lenses from Canon yet. It comes with a lens hood which continues with the new textured style we have seen on the 100mm f2.8 IS Macro and the 70-200 f2.8 L IS II and it also comes with the usual lens pouch. Noticeable in it’s absence though is a tripod collar and frankly I think this is unforgivable. In reply to elfroggio • Sep 4, 2022. 4. The Tamron 70-180 is way sharper than the 70-200 F4. AF wise I would imagine they are about equal. The 70-200 F4 is in need of an update. Nokiron's gear list: Ricoh GR III Sony a7R IV Fujifilm GFX 100S Fujifilm GF 100-200mm F5.6 Sigma 24-70 F2.8 DG DN +19 more. EF 70-200mm f/4 vs RF 70-200mm f/4. I've been looking into getting a 70-200mm type lens for my EOS RP. If money was no object I'd probably go with the RF versions since it seems to have some slight advantages but I found some great deals that made me question whether the EF might be the way to go. The RF F/4 goes for around 1250 euros while I jaUD.