Acratech Quick Release Plate for Telephoto Lenses (3")

The Acratech website shows that the correct lens plate for this lens is the 4" lens plate item #2131 B & H site shows they are in stock and ready to ship.

Correct, we do not add the screws on the bottom of our plates. We have considered adding them but we do not like them because they do not allow the camera to sit flat when setting it down on a flat surface. It also seems like a potential problem with smaller plates.

The Acratech Quick Release Plate for Telephoto Lenses (3"), B&H # ACQRLP3, and the Kirk KLP-310 Quick Release Lens Plate for Select Lenses, B&H # KIKLP310V2, are both good lens plates for use with the FUJIFILM XF 50-140mm f/2.8 R LM OIS WR Lens. All Acratech quick release plates 3 inches (75mm) and longer include a second attachment screw that may be required for some lenses. If your lens only has one screw mount attachment thread, then you would simply remove the other screw, which you may choose to keep as a spare/backup screw.

Per Acratech's response below, the plate is compatible with your 70-200 2.8S Nikon lens.

Hi Myles,I need a little more information, which Canon 400mm, the f/4 or f/2.8The f/4 our 3 lens plate #2181 will work fine or if you want to slide the lens forward or backwards for more balance you can use our 4 lens plate #2131.The f/2.8 i would recommend our 5 lens plate 2174. If you want to slide the lens forward or backwards for more balance you can use our 6 lens plate #2132. I hope this helps.

I don't know about Pentax but it fits my Canon 28-300 perfectly.

Hi Ronna,I find that the selection of these plates is best when considering the length of the lens tripod mount foot and adding at least an inch. This help to provide enough room to move the lens back and forth for balancing when mounted on the tripod. Hope this helps.

We used it on a Pentax 70-200. Worked just fine. Just measured the place you are attaching it.