Circular Polarizers
May 4, 2018 08:06:45 #
I have 82mm filters that serve both my 82 mm lenses and 77 mm lenses using step rings. The only problem is the fact that the lens hood won't fit on the 77 mm lenses when the 82mm filter is attached. But when using a CP the hood gets in the way anyway because it makes it very difficult to reach the filter to turn the ring. The hood will fit when using the 82mm lenses, but with the hood in place I can't reach the polarizing ring so consequently I do not attach the hood when shooting with the polarizer.
Using step rings with ND filters is more of an issue for me than with the CP. The CP doesn't work well with a hood, but ND's would. As a general rule when I am using ND's it is to achieve slow shutter speeds so I am usually on a tripod anyway, which lets me use a ball cap or some other shield to avoid glare on the lens.
Bill
Using step rings with ND filters is more of an issue for me than with the CP. The CP doesn't work well with a hood, but ND's would. As a general rule when I am using ND's it is to achieve slow shutter speeds so I am usually on a tripod anyway, which lets me use a ball cap or some other shield to avoid glare on the lens.
Bill
May 4, 2018 08:13:53 #
CanonTom
Loc: Birmingham
J2e wrote:
The lens I use most frequently with my 77mm CP is Canon 18-135mm with a 67mm diameter. Of course this requires a step up ring. This presents a few annoyances. Use of the step up ring is inconvenient in the field, and it prevents use of the lens hood and lens cap. I wound up purchasing a 67mm CP and have no regrets.
Ditto! Same here. A larger quality lens hood and possibly lens cap as well, will cost you almost as much as the difference between a step up ring and an additional quality filter. Plus switching back and forth is a pain and a time waster. Tom
May 4, 2018 08:20:13 #
Thanks all, it boils down to cost and good CPL's are not cheap. Are CPL's better at certain focal lengths? I use the Tamron 70-200 G2 a lot and curious if there are any issues throughout this range? I guess I need to do some more reading too.
May 4, 2018 08:22:47 #
May 4, 2018 09:06:17 #
May 4, 2018 09:23:25 #
In this application, if you use a round rubber lens hood that screws into the front of the polarizer then you can easily rotate both the CP filter and round lens hood by spinning the lens hood. It is always cumbersome to reach inside of a "petal" shaped lens hood (that rigidly mounts to the lens) and rotate a CP filter.
J2e wrote:
I doubt this will work.
The hood is normally fitted to the lens, not to the filter.
The hood is normally fitted to the lens, not to the filter.
May 4, 2018 09:26:01 #
RWR
Loc: La Mesa, CA
J2e wrote:
I doubt this will work.
The hood is normally fitted to the lens, not to the filter.
The hood is normally fitted to the lens, not to the filter.
Screw-in hoods generally screw into a lens or a filter.
May 4, 2018 10:37:30 #
May 4, 2018 10:39:13 #
amfoto1
Loc: San Jose, Calif. USA
Thomas Firth wrote:
Hi all. Has anyone used a larger Circular Polarizer on a smaller lens (82mm polarizer on a 77mm lens) with a step down adapter ring? What issues might there be using the larger Circular Polarizer on the smaller lens?
Thanks Tom
Thanks Tom
Typically the problem with using an oversize filter and a step ring is that you cannot use the lens hood (which is important... even more-so when using a filter).
I use CPL a lot... in fact it's easily my most frequently used type of filter.
Even so, I rarely use a CPL on a telephoto or a macro lens. I have a drop-in CPL for one of my 300mm and my 500mm, that I doubt I've used more two or three times a year, even sharing it between the two lenses. And one of the macro lenses I use, bought several years ago, uses a size that I don't currently have a CPL (55mm)... so I guess I don't use one there very often either. Same with a 70-200mm that I've use a lot for several years... I don't even have a CPL to fit it yet (67mm).
I frequently use CPL on wide angle to normal lenses that I'm using for landscape.... And sometimes on short telephoto portrait lenses.
I DO use step rings... but only to stack all my filters together for storage and protection. 58mm, 72mm and 77mm currently.
May 4, 2018 10:45:44 #
Tom, I have on many occasions. It's a bit kludgy, but it works. In my case, it's a 77mm down to a 52mm.
--Bob
--Bob
Thomas Firth wrote:
Hi all. Has anyone used a larger Circular Polarizer on a smaller lens (82mm polarizer on a 77mm lens) with a step down adapter ring? What issues might there be using the larger Circular Polarizer on the smaller lens?
Thanks Tom
Thanks Tom
May 5, 2018 00:44:23 #
wdross wrote:
The only issue is if you want to use a lense hood for the lens. Otherwise there are very few other issues.
You can use filters and lens hoods together if you have a lens hood that mounts on the part of the lens above and beyond the filter threads on the lens. They are also reversable to make more compact in the lens bag.
May 5, 2018 08:21:02 #
When you use a step-down ring, be sure to NOT overtighten the filter to the ring or the ring to the lens. Trust me.
May 5, 2018 12:24:19 #
RWR
Loc: La Mesa, CA
Naptown Gaijin wrote:
When you use a step-down ring, be sure to NOT overtighten the filter to the ring or the ring to the lens. Trust me.
As I’ve said twice before in this thread, the OP needs a step-up ring. To mount an 82mm filter on his 77mm threaded lens with a step-down ring, the OP would need a 77mm reversing ring on the lens, the step-down ring on the reversing ring, and screw the filter onto the step-down ring backwards. Trust me.
May 5, 2018 16:16:50 #
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