10 Stopper Help please

[tenchy]

Oft Carl! That sounds very technical, I wouldn't even know where to start

just set up somewhere like back garden, with steady light, ie not differing cloud cover.
take one no 10 stop, then work out the exposure, take it, see if brighter or drak than no filter and adjust.
When matched as best you can, note the difference.
I'd take one after to check lighting not changed.

[Paul K]

from the table linked to above by me, the exposure time should be 1 minute. Plus it may be a bit over, but double the exposure time would lift your image 1 stop, sounds about right.

I did another one for 1min 40secs but that to turn out the same with the blue colour cast, but the rocks did come out ok, but not great.

[tenchy]

the blue cast will be the filter itself. you will find a WB setting that removes it quickly.

[carlb40]

Oft Carl! That sounds very technical, I wouldn't even know where to start

It's easy paul.
Set up in a bright room in your house. Do the usual, AV - see what the shutter speed is. Go into manual. Set the shutter speed to what ever the chart says.
Take a pic, load it onto the pc. In ACR click auto. Check see if it has added any exposure value. If it has, take another pic with that value added. Then back to ACR. Keep going till when you click auto in ACR it adds no exposure to the pic.
It is quite easy and quick

[DonS]

Yip closest one to the lens.
Didn't cover the viewfinder! - light comes on
1/15sec

I use Long Time Exposure, and it says at 1/15 without the filter it should be 1 minute with it, not 30 seconds for 10 stops.

EDITL miss a whole page, this was answered

[LeeRatters]

You may be better off doing a test in a controlled environment to check how many stops your ten stop actually is.

^^^ My BW ND110 is nearer to 11 stops than 10 so worth checking

I also find the WB Dropper in LR to be pretty accuatre too. Not smack on, but damn close to just need a tweak.

[Paul K]

I also find the WB Dropper in LR to be pretty accuatre too. Not smack on, but damn close to just need a tweak.

I did a tweak last night Lee and took it to 15000, then 20000K to try and get somewhere near what I was looking at. Not too sure if thats classed as a tweak or a major revamp!

[SeanNeedham]

Have a look at the section below where it says "Post Processing" here http://www.diyphotography.net/use-we...tops-nd-filter