nd grad 110 (b&w)

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phil
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looking for advice on setting up or using a 10 stop b&w filter.
how is the calculation done
thanks.
 
looking for advice on setting up or using a 10 stop b&w filter.
how is the calculation done
thanks.

There are quite a few posts on this from the last few days if you run a search :)

Edit: it's not a 'grad' as per the title. Grads are graduated - half dark fading to half clear.
 
You can scarcely see through your viewfinder so if you have live view, use that to compose and to focus manually if your auto focus can't cope. Always always always use your view finder cover to stop stray light leaking in and ruining the exposure. With the cover on, your metering system should be able to cope and come up with good exposure times for you. Even so, check your histograms and be prepared to use a little +ve exposure compensation if your camera is underexposing. White balance is thrown off by it and comes out more than a touch warm, so shoot raw and adjust the balance later.
 
This might be of some use to you? I compiled it from various sources found online, hopefully its accurate as I’ve only just received my B+W ND 10 stop a few days ago so I’ve not had a chance to try it out yet.
I’ve got this as a word doc so if anyone wants this e-mail or pm me. Please note I’m off to London for a few days on Sunday so I’ll not be able to respond until I get back on Friday.

Link to a larger version is below image.


ndspeedssmall.jpg



Larger version here…. http://img194.imageshack.us/img194/5522/ndspeeds.jpg
 
i have made a B+W shutter speed conversion chart from the one posted on here only this just has the 10 stop speeds on to make it read easier, i have tested it and its pretty close too so its a great starting point, i found the 11 stop was closer for match for me, it should be high enough resolution to print a 3" - 4" card for your bag or smaller to go in the filter box, i hope you find it useful

10_stop_conversion_table.jpg
 
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