Exactly what is this? I purchased a field bag a couple of years ago from Focus Camera and it came with several accessories, most of which were useful (I was really buying it for the...

OldCADuser Loc: Irvine, CA

I purchased a field bag a couple of years ago from Focus Camera and it came with several accessories, most of which were useful (I was really buying it for the bag itself, the rest was just extra stuff). Anyway, included was this plastic card (see image below), in fact, there was a package of three of them. The issue is that there was no explanation as to what they're used for. I've had the package of them laying in a desk drawer and every time I see them I can't help but wonder to what purpose are they.

Anyway, if anyone out there can give me some insight, I'd appreciate it. Note that I've gone back to the Focus Camera site and looked at this camera bag with accessories and it shows these plastic cards but without any explanation as to what they're used for. And the Focus Camera site is the only place where I've ever seen anything like this.

So, any help would be appreciated:

User ID

Something for the naturalist to help report accurately about living specimens without collecting them ?

Orphoto Loc: Oregon

They show magnification levels for full frame film/digital cameras. Note the 1" is roughly the dimensions of a frame, 24x26mm. What most would refer to ass 1:1.

OldCADuser Loc: Irvine, CA

But that 1" area is actually 26 x 28mm. With that in mind, what are the 2", 3", 4" and 5" areas used for? Note that they're not to scale nor are they even proportional to each other, as can be clearly seen in the image above.

24Megapixseal Loc: Kansas

https://www.focuscamera.com/photo/more-photo-video/cleaning-care/focus-5-piece-digital-camera-accessory-kit.html

Those cards are screen protectors! Evidently you use those scales on the sides to measure your rear LCD or even your phone screen, and then you probably cut to fit, peel and stick...

Let us know it this is correct... Try peeling back on edge... It's not just "a plastic card"

Longshadow Loc: Audubon, PA, United States

24Megapixseal wrote:

https://www.focuscamera.com/photo/more-photo-video/cleaning-care/focus-5-piece-digital-camera-accessory-kit.html

Those cards are screen protectors! Evidently you use those scales on the sides to measure your rear LCD or even your phone screen, and then you probably cut to fit, peel and stick...

Let us know it this is correct... Try peeling back on edge... It's not just "a plastic card"

Odds are very high you are correct.

OldCADuser Loc: Irvine, CA

24Megapixseal wrote:

https://www.focuscamera.com/photo/more-photo-video/cleaning-care/focus-5-piece-digital-camera-accessory-kit.html

Those cards are screen protectors! Evidently you use those scales on the sides to measure your rear LCD or even your phone screen, and then you probably cut to fit, peel and stick...

Let us know it this is correct... Try peeling back on edge... It's not just "a plastic card"

It appears that you're right, just that that still doesn't explain those odd 1" thru 5" areas.

Longshadow Loc: Audubon, PA, United States

OldCADuser wrote:

It appears that you're right, just that that still doesn't explain those odd 1" thru 5" areas.

Common sizes for something?
Not necessarily just for cameras?

Linda From Maine Loc: Yakima, Washington

OldCADuser wrote:

It appears that you're right, just that that still doesn't explain those odd 1" thru 5" areas.

One Google result for the the 5" is "credential" card. You're gonna be a pro!

tcthome Loc: NJ

OldCADuser wrote:

But that 1" area is actually 26 x 28mm. With that in mind, what are the 2", 3", 4" and 5" areas used for? Note that they're not to scale nor are they even proportional to each other, as can be clearly seen in the image above.

OldCADuser Loc: Irvine, CA

Linda From Maine wrote:

One Google result for the the 5" is "credential" card. You're gonna be a pro!

Back when I was doing freelancing (late 60's/early 70's), my 'Press Pass' was the size of a standard business card (so that it would fit in your wallet). Today, I suspect that most 'Press Passes' are hung around the neck on a lanyard or clipped to your shirt/jacket.

Dan' de Bourgogne

OldCADuser wrote:

I purchased a field bag a couple of years ago from... (show quote)

This could be the board to compare "traditionnal" sizes of millimetric sized negatives/slides" '24x36) with their counterparts sized in "inches commercial dimensions" (1" x 1,5")...this could grow up to paper formats.
No headache when it comes to magnify the négatives and cut the paper.

Longshadow Loc: Audubon, PA, United States

OldCADuser wrote:

But that 1" area is actually 26 x 28mm. With that in mind, what are the 2", 3", 4" and 5" areas used for? Note that they're not to scale nor are they even proportional to each other, as can be clearly seen in the image above.

1"=2.54 cm last I knew.......
No idea for what the "inch" indicators are used.

OldCADuser Loc: Irvine, CA

Longshadow wrote:

1"=2.54 cm last I knew.......
No idea for what the "inch" indicators are used.

That's why it's a mystery to me...

24Megapixseal Loc: Kansas

OldCADuser wrote:

That's why it's a mystery to me...

So..
OldCADuser, have you tried to peel the "screen protector" yet?.... If it peels off and will stick to a screen, the mystery is solved.... Or is it?.. lololol... Hopefully it's not keeping up up at night... 😉