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| Tutorials and Guides Discuss Reciprocity - a video tutorial...Reciprocity is a word that frightens some people only because it sounds complicated but it needn't be. It's ... |
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29-04-2008, 19:39
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#1 (permalink) | |||
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Loves the place
Join Date: Sep 2006
Location: Poole, Dorset
Posts: 5,115
    
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Reciprocity - a video tutorial
Reciprocity is a word that frightens some people only because it sounds complicated but it needn't be. It's as simple as this: you punch me on the nose, I punch you on the nose back! I reciprocated your action
 Seriously though, understanding this principle is important for new SLR users seeking to get to grips with using shutter speeds, apertures and ISO so i have made a video tutorial on the subject which I hope will be of help to some. It's all a bit fruity at the beginning but stick with it, it (hopefully) all becomes clear Cheers, Rob
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Rob Barron If you look down on other people, don't expect them to look up to you!
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29-04-2008, 19:40
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#2 (permalink) |
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Feet under the table
Join Date: Jan 2007
Location: London, England
Posts: 3,414
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Re: Reciprocity - a video tutorial
Vid not embedded properly Rob
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29-04-2008, 19:42
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#3 (permalink) |
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Loves the place
Join Date: Sep 2006
Location: Poole, Dorset
Posts: 5,115
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Re: Reciprocity - a video tutorial
Should be ok now Jack
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29-04-2008, 19:44
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#4 (permalink) |
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Pixalo Crew
Join Date: Jan 2005
Location: An Englishman living in Germany
Posts: 15,948
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Re: Reciprocity - a video tutorial
I have corrected the link for you Rob
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29-04-2008, 19:49
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#5 (permalink) |
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Feet under the table
Join Date: Jan 2007
Location: London, England
Posts: 3,414
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Re: Reciprocity - a video tutorial
LOL I was very perplexed at the beginning when you started talking about the fruit...
"we have two of each, but we have 6 pieces of fruit, agreed?"   Didn't happen to ever live in America did you Rob (just checking something ) |
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29-04-2008, 19:50
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#6 (permalink) |
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Loves the place
Join Date: Sep 2006
Location: Poole, Dorset
Posts: 5,115
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Re: Reciprocity - a video tutorial
Thanks Steve, that was very quick and efficient.
Here's hoping the video is as helpful Cheers, Rob |
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29-04-2008, 19:51
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#7 (permalink) |
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Loves the place
Join Date: Sep 2006
Location: Poole, Dorset
Posts: 5,115
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Re: Reciprocity - a video tutorial
LOL Jack, I have spent a fair bit of time in the US and have a lot of friends over there. I have been 13 times and the total comes to about 18 months! But I don't think that had any influence on my fruity example
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29-04-2008, 19:52
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#8 (permalink) |
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Feet under the table
Join Date: Jan 2007
Location: London, England
Posts: 3,414
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Re: Reciprocity - a video tutorial
Just your accent... I noticed it, dunno if it's really there....otherwise, how would I have guessed
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29-04-2008, 19:56
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#9 (permalink) |
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Feet under the table
Join Date: Jan 2007
Location: London, England
Posts: 3,414
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Re: Reciprocity - a video tutorial
LOL "This is my information screen, and this is going to give us some information"
Priceless  |
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29-04-2008, 23:37
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#10 (permalink) |
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Loves the place
Join Date: Sep 2006
Location: Scotland
Posts: 5,318
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Re: Reciprocity - a video tutorial
arghhhh not the dreaded reciprocity!!!!!!!! HOW long did it take you to get it into my head ! lolol
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04-05-2008, 09:35
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#11 (permalink) |
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Been here a while
Join Date: Oct 2006
Location: Lancashire
Posts: 440
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Re: Reciprocity - a video tutorial
Very fruity Rob
But I certainly enjoyed it. I now know how to balance the shutter speed and apperture and where it stands for. Thank you very much for taking the time to do these video's  |
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04-05-2008, 19:48
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#12 (permalink) |
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Forum Regular
Join Date: Jul 2006
Location: Just south of Glasgow, Scotland
Posts: 788
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Re: Reciprocity - a video tutorial
Small error, Rob. One stop faster than f/2.8 is f/2... not f/1.8, since 2.8 / 1.4 = 2
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06-05-2008, 11:22
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#13 (permalink) |
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Loves the place
Join Date: Sep 2006
Location: Poole, Dorset
Posts: 5,115
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Re: Reciprocity - a video tutorial
True VP but in a video like this aimed at beginners, it would be confusing to list f2 as the next f stop when actually the vast majority of lenses go up from 2.8 to 1.8 which is why I used that, in line with the majority of tuitional books that I have read. f1.8 is generally used as one stop up from f2.8 in those and on lenses so I felt it best to stick with that.
This is something I have faced a lot of while doing these vids, deciding when to go with 'absolute accuracy' and when to go with 'clarity that avoids confusion'. It is a bigger problem than we realise as we are so used to this stuff that we don't often think about it. Also dSLRs nowadays usually offer a choice of partial stops as either half or third stops and so on and I felt this would all lose beginners completely! Thanks for pointing it out and I would be interested to hear opinions on whether you think I should aim entirely for technical accuracy or for 'best fit' which avoids confusion. Cheers, Rob |
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