Thank you sir! I just ordered a Hoya “X” filter from Adorama directly. Thanks for the reminder about plastic filter threads on some lenses.
Good luck with your filter. Let me know what you think.
I figured out that why tamron’s are at the prices points that they are at why Canon L’s are at there’s. While I’m pretty happy with the Tamron, it’s not quite the same build quality of Canon.
Two other lens manufacturers to look at are Sigma and Tokina (As far as I know, their lenses are still largely metal). I tend to rate the aftermarket mfrs in this order of quality: Sigma, Tokina, Tamron. I generally won’t bother with the others. Sigma also makes SLR cameras using the Foveon sensors. The Sigma EX tends to have pretty good build quality. My Sigma 50-500EX,APO is all metal (not a light lens) and has held up for several years (more than 8). It is getting to the point that I may need to get it cleaned though. I got my S.O. a Tokina 80-400ATX which is virtually all metal. My sister is using a Nikon body with older Nikon lenses and Tamron lenses. I have noticed that Nikon is going plastic.. and I am not too happy about their lens quality these days. They have decided to try to fix lens problems in the camera w/ software vs a proper lens build. Canon tends to have good lenses.. but very pricey.
My rule of thumb for putting on a filter is to rotate them on ccw for a bit to get alignment first and then to rotate them cw to actually mount them.
I sort of do the same, I rotate backwards (CCW) until I feel the filter ‘settle’ or drop just a bit, then turn slowly forwards.
Another thing that I tend to do with metal ring mounts is to take Vaseline and use a Q-tip to put a very thin film of it on the metal mount-rings that go between camera and lens apply with Q-tip and then wipe off. I also use a Q-tip and apply dry lubricant(Teflon or silicon based) to it and while the Q-tip is still wet, apply it to the threads on my filters. All of the above is to prevent the creation of small metal shavings, through use, that can get into the camera or lens.