18-200vr + B+W UV+CPL MRC


Status
Not open for further replies.

ryuggen

New Member
Apr 5, 2006
791
0
0
Bukit Panjang
#1
Just gotten the B+W CPL MRC. Unfortunately, it shows darkening of the corners when taken at 18mm. The edges disappears when moved towards tele range. Question is, is this normal? What causes it for the lens to behave in that way? Without a CPL, the corners are perfectly fine. When i screwed the CPL, vigininting occurs.

I'm using 72mm UV filter with a step up ring for 77mm CPL filter.

:dunno:
 

ExplorerZ

Senior Member
Jan 9, 2006
7,752
0
36
West Legion
hkchew03.deviantart.com
#2
Just gotten the B+W CPL MRC. Unfortunately, it shows darkening of the corners when taken at 18mm. The edges disappears when moved towards tele range. Question is, is this normal? What causes it for the lens to behave in that way? Without a CPL, the corners are perfectly fine. When i screwed the CPL, vigininting occurs.

I'm using 72mm UV filter with a step up ring for 77mm CPL filter.

:dunno:
do a search on vignette...
 

Dann

New Member
Mar 27, 2004
605
0
0
-Not Found-
#3
Try it without the UV filter coz UV+adapter+CPL will cause vignetting bcoz its protruding out too much.
 

Artosoft

Senior Member
Aug 31, 2005
3,710
0
0
Tanjong Katong
#4
Just gotten the B+W CPL MRC. Unfortunately, it shows darkening of the corners when taken at 18mm. The edges disappears when moved towards tele range. Question is, is this normal? What causes it for the lens to behave in that way? Without a CPL, the corners are perfectly fine. When i screwed the CPL, vigininting occurs.

I'm using 72mm UV filter with a step up ring for 77mm CPL filter.

:dunno:
Try Camera|Lens|UV|Step-upRing. Without CPL I think you will see vignetting on 18mm also.

That's normal. You can try Camera|Lens|Step-upRing|CPL and see whether vignetting at 18mm or not.

Regards,
Arto.
 

Artosoft

Senior Member
Aug 31, 2005
3,710
0
0
Tanjong Katong
#6
You need to get the B+W SLIM version, or get Nikon 77mm CPL II :)
IMHO, if you are using step-up ring 72-->77 (or 77-->72?), slim version may not help as the vignetting is caused by step-up ring and UV filter.

I might be wrong...

Regards,
Arto.
 

Astin

Senior Member
Mar 2, 2002
4,736
0
36
Astin Studio
astin.clubsnap.org
#7
I would say take off the UV and the step up ring, and use the 72mm CPL-slim version. (as someone already mentioned, adding UV+stepup ring+CPL-normal version protrude too much and will cause dark corners)
 

ryuggen

New Member
Apr 5, 2006
791
0
0
Bukit Panjang
#8
The reason for getting 77mm is for its potential uses with 77mm lens.

Having to take out UV and then screw in step up+ CPL is such a chore~ Looks like no choice. Gotta experience it. The vigneeting is caused by the nature of stacking filters? I bought the B+W thinking that it might be a good investment for current and future lens. So kinda disappointed by the vignetes
 

Artosoft

Senior Member
Aug 31, 2005
3,710
0
0
Tanjong Katong
#9
The reason for getting 77mm is for its potential uses with 77mm lens.

Having to take out UV and then screw in step up+ CPL is such a chore~ Looks like no choice. Gotta experience it. The vigneeting is caused by the nature of stacking filters? I bought the B+W thinking that it might be a good investment for current and future lens. So kinda disappointed by the vignetes
Yes, but not the only causer. Vignetting can occur when you use not-correct lens hood, also when the projection of the lens is not cover the sensor (like using DX/APS size specific lens to 35mm size sensor).

Regards,
Arto.
 

ryuggen

New Member
Apr 5, 2006
791
0
0
Bukit Panjang
#12
actually it doesnt vignet when there is nothing infront or even with a UV. It starts to vignet when i mount the CPL. :cry:

Sensor wise, i'm using a D50.
 

Status
Not open for further replies.
Top Bottom