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03-05-2012, 07:23 PM   #1
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Clip snip test ?

I'm preparing to send some 120 Portra out for processing to a new (to me) company in Chicago. They have an extra service for Clip snip test at $4.00 a roll. I haven't heard of this, I suspect this might be something to use if you thought you heavily over or under exposed your shots ? Can someone confirm if this is what this is or what it is ?

Dennis in Pittsburgh

03-05-2012, 08:55 PM   #2
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it's a simple test to see if a roll of film has been exposed correctly or exposed at all. A short length of film is cut off the end of the roll in complete darkness, then processed and examined.

Many custom photo labs will do a clip test for a small fee, but automated minilabs generally will not as their machines aren’t designed to accommodate short lengths of film. What you are thinking of is "pushing" or "pulling" for under or over exposed rolls.
03-05-2012, 09:02 PM   #3
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hi den:

if you are not certain how you exposed the film (over or under exposed it for push or pull processing), or had the iso set wrong on the camera or wanted to see the results for a certain type of developer, you would start processing the roll of film and clip some off into the stop bath (or clip some off before processing and then develop for a predetermined time). You waste some images (even if the test is successful the chances of splitting a frame with the cut were very high), but you know the best processing time and do the rest of the roll. If doing the clip test while the film is in the soup, it is best to do this with a test roll, all with the same image on every frame. You are paying for the labor to do the test. If you know how you shot the film, then the clip test is not necessary.

hope this helps!

03-06-2012, 05:26 AM   #4
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Wasn't pushing or pulling these rolls (intentionally that is ), so I'll not go for the test. Thanks for the replies guys.

03-06-2012, 06:42 AM   #5
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It's just called a clip test. It can be useful for slide or B&W which can be altered somewhat by development. Contrary to popular belief, C-41 can't be push or pull processed with any real success, so there is no point in clip testing.

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