khurram1 Offline Image Upload: On
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p.1 #9 · Singh Ray Vari-ND/Vari N Duo with Canon Wide Angle | |
mMontag wrote:
I use a 77mm Vari-ND slim on a 24 II TS-E with a 82-77 step-down ring - 1-2 degree tilt - no vignetting even at f3.5. If you shift or tilt over 4 or 5 degrees it will vignette. A 77mm slim will vignette to about 21-22mm on a 17-40. The 24-105 vignettes very easily & shows up to around 28mm. All on FF. It might be nice to have - but - do you really need 5 plus stops of ND at 16-22mm?
I'm not aware of the "color shifting" issue you mentioned using the 5 stop - is it occurring at wider angles - maybe post an image - if your able to provide that link to Gear Forum might be helpful. I use GND's quite often - unwanted color usually is too much filter - underexposure - similar to darkening skies, etc.
Call Bob at Singh Ray - great consultant, product & service.
Thanks for the info about the step up ring with the 77mm filter on the TSE. I'll give it a try. I guess i won't be able to stich pano's with the combo, since limited shift is available, but at least it sounds like the best option for using a 24mm lens with my Vari ND.
Here's a link to the Gear Talk post.
http://www.fredmiranda.com/forum/topic/815681/0#7553242
Below are the photos I posted there.
The first is just using a ND grad. The next two are with the 5 stop Grad added, the last is again with the 5 stop ND removed.
These photos represent situations why i bought the SR 5 stop 4x6 ND filter. I got it for when I also need to use a ND grad to hold back the sky, and when I wanted to use my 16-35L II lens. I find using a 4x6 ND filter is much faster then using a screw in, since you can focus and compose and then insert the filter very quickly in the Lee WIde ANgle filter hood. I experienced the same issue at Glacier NP when trying the same combo at Swift Current falls.
I did try calling singh-ray a few times and both times a lady said he would call back, to explain the technical reason that this was happening. I figured, that I'd probably get the same answer as i got in the gear forum, so I didn't bother calling back again after the second attempt to call him.

| Exif information | | Model | Canon EOS 5D Mark II | | Date | 2009:09:19 14:23:35 | | Original date | 2009:07:18 21:37:22 | | Exposure time | 2 sec | | Focal length | 25mm | | Focal number | f/16.0 | | ISO speed | 100 ISO | | Exposure compensation | 0.0 |

| Exif information | | Model | Canon EOS 5D Mark II | | Date | 2009:09:19 14:23:28 | | Original date | 2009:07:18 21:38:30 | | Exposure time | 13 sec | | Focal length | 25mm | | Focal number | f/16.0 | | ISO speed | 100 ISO | | Exposure compensation | 0.0 |

| Exif information | | Model | Canon EOS 5D Mark II | | Date | 2009:09:19 14:23:52 | | Original date | 2009:07:18 21:38:54 | | Exposure time | 25 sec | | Focal length | 25mm | | Focal number | f/14.0 | | ISO speed | 100 ISO | | Exposure compensation | 0.0 |
Edited on Nov 08, 2009 at 07:24 PM · View previous versions
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