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?
Table or Tablets? Or filters? Please be more precise.
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?
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.
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
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.
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.
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.
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?
rgrenaderphoto wrote:
What is the OP referring to?
It's for calibrating a densitometer.
`
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.
`
rgrenaderphoto wrote:
What is the OP referring to?
I believe that the OP was referring to the Tiffen Step Tablets.
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