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neutral density conversion chart
May 19, 2022 11:16:02   #
MrBob Loc: lookout Mtn. NE Alabama
 
Anyone nerdy enough besides me to get on Excel and make a neutral density conversion chart based on variable shutter speeds for 1,3,6, and 10 stop filters ? reduced to small card to eliminate having to plug values into a calculator. Just going through some stuff and came across one I did. When one has IDLE time on one's hands.

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May 19, 2022 11:40:34   #
rmalarz Loc: Tempe, Arizona
 
Why go through all that effort. It's a simple matter of knowing the factor each filter has and applying that.
--Bob
MrBob wrote:
Anyone nerdy enough besides me to get on Excel and make a neutral density conversion chart based on variable shutter speeds for 1,3,6, and 10 stop filters ? reduced to small card to eliminate having to plug values into a calculator. Just going through some stuff and came across one I did. When one has IDLE time on one's hands.

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May 19, 2022 12:59:54   #
MrBob Loc: lookout Mtn. NE Alabama
 
rmalarz wrote:
Why go through all that effort. It's a simple matter of knowing the factor each filter has and applying that.
--Bob


Yeah, I know, it was just something I did to easily look at the entire picture and jiggle possibilities in my head... Something I did when I first got interested in ND... I was doing waterfalls and I wanted certain shutter speeds , so this allowed me to jiggle ISO and shutter to get what I wanted. I think they call it learn by doing... sometimes maybe not the most efficient.

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May 19, 2022 13:39:06   #
rmalarz Loc: Tempe, Arizona
 
I do some of that "learn by doing" too.
--Bob
MrBob wrote:
Yeah, I know, it was just something I did to easily look at the entire picture and jiggle possibilities in my head... Something I did when I first got interested in ND... I was doing waterfalls and I wanted certain shutter speeds , so this allowed me to jiggle ISO and shutter to get what I wanted. I think they call it learn by doing... sometimes maybe not the most efficient.

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May 20, 2022 14:50:26   #
RCJets Loc: Virginia
 
Well....................are you going to post your chart? Or not.

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May 20, 2022 16:59:54   #
MrBob Loc: lookout Mtn. NE Alabama
 
RCJets wrote:
Well....................are you going to post your chart? Or not.


Oh Ok.... I did not think anyone was interested.... I will do it. Really not that impressive, But I will get on it.

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May 20, 2022 17:41:58   #
fetzler Loc: North West PA
 
Mostly, I do this task with my Brain. There are Android apps that are useful.

https://play.google.com/store/search?q=nd%20filter%20exposure%20calculator&hl=en_US&gl=US

Also I attach a chart that I got somwhere possibly B&H photo.

Attached file:
(Download)

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May 20, 2022 18:36:57   #
MrBob Loc: lookout Mtn. NE Alabama
 
Yeah, as I told bob, it was just a visual to see the whole picture of possibilities at once as I was doing waterfalls and looking for specific shutter speeds... Glad you posted, as the one I was looking at was a printout from excel on a windows file I don't have anymore.

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May 30, 2022 09:57:55   #
DickC Loc: NE Washington state
 
rmalarz wrote:
Why go through all that effort. It's a simple matter of knowing the factor each filter has and applying that.
--Bob


Exactly!!!

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Jul 8, 2022 12:14:54   #
SuneBonobo Loc: Maryland
 
MrBob wrote:
Anyone nerdy enough besides me to get on Excel and make a neutral density conversion chart based on variable shutter speeds for 1,3,6, and 10 stop filters ? reduced to small card to eliminate having to plug values into a calculator. Just going through some stuff and came across one I did. When one has IDLE time on one's hands.


Do you have a cellphone? If so, try Photopills app. I think it's around 10 bucks but has everything you need to plan a photo outing plus specific pills in the app for nd conversion, dof, hyperfocal. Or even Lee filters has a free downloadable app. I don't know if it's updated anymore, but mine only has 6 or 10 stop conversions. Just turn a dial eazy peazy.

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