John Howard Loc: SW Florida and Blue Ridge Mountains of NC.

Trying to take things to the next level after two years, I purchased a set of Corkin filters - the rectangular type with the holder and adapter ring. Went to the shore early to catch some fog, which I just missed, but did take some shots practicing with the filter setup.

Firstly, disappointed as I thought buying the "pro" version of the GND setup, the filter and holder would not crop the wide angle lens. I had to zoom out from 17 to nearly 35mm to avoid cropping the image. It got worse when I tried a screw on ND400, to slow things down and get a better water effect. This exacerbated the cropping effect.

And with the ND400 on the lens, I could not see, frame, or position the GND filter, so I had to set it all up without the ND, and the rebuild the setup without moving anything. Clearly I should have gotten a rectangular version of the ND400 so I could slide it in last.

I did get a few images and would appreciate any feedback to my fiasco or the photos. You can find them at
http://m.flickr.com/#/photos/jhow60/12756881763/in/set-72157641481125904/
(Cant seem to get anything to upload, so I need to go read those directions.)

I know that they would have been better with something in the foreground, but there was nothing. I was just practicing the setup, exposure and effect of slowing down.
Thanks for any input,
JH

Rongnongno Loc: FL

Err, pro refers to the quality of the filter and it size, not to the holder position relative to the lens. Screw in filters are the worse when it comes to that (you can use a thread adapter to widen the filter diameter and alleviate the problem).

The best holders keep the filter near the level of the lens physical extremity and are wide enough not to enter the lens viewing angle. This goes only so far thought.

Neutral density filters, gradient or not, will always enhance the vignetting.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

The P series is correct for a 17-55 mm lens on a ff camera.

BHC Loc: Strawberry Valley, JF, USA

What size filter are you using? A? P? Other?

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

Mogul, he wrote that he is using the Pro filter, he should be using the P series.

chapjohn Loc: Tigard, Oregon

Try holding the filter in front of the lens with your hand. If using GND's and little practice you can move the filtet a little to get rid of any hard lines the filter may create.

John Howard Loc: SW Florida and Blue Ridge Mountains of NC.

Yes thanks. Even reading Cokin's website it is confusing labeling.

BHC Loc: Strawberry Valley, JF, USA

Actually the P series is not labeled a "Pro" series as as the Z-Pro and X-Pro. The probable confusion is based on the fact that the P Series may not cover some of the super lenses Pros use today:

http://www.cokin.co.uk

A - 36-62mm
P - 48-82mm
X - 62-112mm (Cokin's real Pro Series)
Z - 49-96mm

John Howard Loc: SW Florida and Blue Ridge Mountains of NC.

This is the correct response. Thanks to all.