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Step Tablets
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Sep 21, 2018 16:12:06   #
bpulv Loc: Buena Park, CA
 
I know that a #1 step table is an 11 step tablet and that a #2 step tablet has 21 steps. I understand that a #3 step table also has 21 steps. So, what is the difference between a #2 and #3 step tablet?

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Sep 21, 2018 16:14:50   #
rgrenaderphoto Loc: Hollywood, CA
 
Table or Tablets? Or filters? Please be more precise.

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Sep 21, 2018 16:20:22   #
rmalarz Loc: Tempe, Arizona
 
Between 2 and 3 is a difference of 1. Though that's a guess. I'm not really sure what you are asking.
--Bob
bpulv wrote:
I know that a #1 step table is an 11 step tablet and that a #2 step tablet has 21 steps. I understand that a #3 step table also has 21 steps. So, what is the difference between a #2 and #3 step tablet?

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Sep 21, 2018 16:21:30   #
BebuLamar
 
I see the only difference is the #3 is bigger. It's 10mm per step as the #2 only 5mm per step. They both have the same density range and step increment.

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Sep 21, 2018 16:24:55   #
Bill_de Loc: US
 
Possibly this

http://www.stouffer.net/using21step.htm

--

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Sep 21, 2018 16:42:13   #
ggab Loc: ?
 
bpulv wrote:
I know that a #1 step table is an 11 step tablet and that a #2 step tablet has 21 steps. I understand that a #3 step table also has 21 steps. So, what is the difference between a #2 and #3 step tablet?

Possibly ND Step Tablets????

https://ndtsupply.com/ndt-density-step-tablets.html

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Sep 21, 2018 16:42:34   #
selmslie Loc: Fernandina Beach, FL, USA
 
bpulv wrote:
I know that a #1 step table is an 11 step tablet and that a #2 step tablet has 21 steps. I understand that a #3 step table also has 21 steps. So, what is the difference between a #2 and #3 step tablet?

You are probably referring to step wedges. They are used for calibrating film and paper wet development processes. They are probably not much use with digital imagining.

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Sep 21, 2018 16:49:22   #
Bipod
 
What manufacture and products are you considering? "#2 and #3" obviously
came from somebody's catalog or web site.

Step wedges (transmissive gray scales) come in different models:
* size
* number of steps
* calibrated or uncalibrated

The largest supplier is Stouffer. I use a calibrated step wedge
"21-step Sensitivity Guide" Stouffer part # T2551C to calibrate
my densiometer. It has given me good, repeatable results.

Whether or not you need a calibrated wedge (rather expensive)
depends on what you plan to do with it.

Reflective scales (gray cards) are whole different ball game.

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Sep 21, 2018 17:12:38   #
bpulv Loc: Buena Park, CA
 
BebuLamar wrote:
I see the only difference is the #3 is bigger. It's 10mm per step as the #2 only 5mm per step. They both have the same density range and step increment.


Thank you, that is all I needed to know.

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Sep 21, 2018 17:20:25   #
rgrenaderphoto Loc: Hollywood, CA
 
BebuLamar wrote:
I see the only difference is the #3 is bigger. It's 10mm per step as the #2 only 5mm per step. They both have the same density range and step increment.


What is the OP referring to?

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Sep 21, 2018 18:28:43   #
User ID
 
rgrenaderphoto wrote:

Table or Tablets? Or filters?
Please be more precise.


He said exactly what he
meant, and accurately.


`

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Sep 21, 2018 18:30:12   #
User ID
 
rgrenaderphoto wrote:
What is the OP referring to?



It's for calibrating a densitometer.


`

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Sep 21, 2018 18:44:09   #
rmalarz Loc: Tempe, Arizona
 
Really??? Then why all of the confusion and questions. If what the OP wanted was a step wedge, then that's what it's called, not a step tablet or step table.
--Bob
User ID wrote:
He said exactly what he
meant, and accurately.


`

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Sep 21, 2018 18:59:23   #
BebuLamar
 
rgrenaderphoto wrote:
What is the OP referring to?


I believe that the OP was referring to the Tiffen Step Tablets.

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Sep 21, 2018 19:34:44   #
rmalarz Loc: Tempe, Arizona
 
Those are rather pricey.
--Bob
BebuLamar wrote:
I believe that the OP was referring to the Tiffen Step Tablets.

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