100 % crop = dumb question

[GM_of_OLC]

This is going to sound totally stupid, but how do you guys make a 100% crop?

I opened my picture in CS2, zoomed in to 100%, then made a crop around the viewable area.

I know there has to be a better way than this.
Can you do it right in Zoombrowser?

[Damo77]

I'm not sure I understand your question. What is the purpose of this cropping that you're trying to do?

[tzalman]

A 100% crop is any crop whose pixel dimensions are small enough that it can be viewed on any monitor at 100% without having to scroll through it. What is important is the pixel dimensions - something like 400x600 should be good - not the size of your display when you crop. I have no idea if ZB has a crop tool, but DPP and dozens (maybe hundreds) of other apps do.

[dave_bass5]

I think a 100% crop means you crop part of the image but you dont set/change the dpi/ppi dimensions.
Its nothing to do with zooming in to 100%

[Radtech1]

This is going to sound totally stupid, but how do you guys make a 100% crop?

I opened my picture in CS2, zoomed in to 100%, then made a crop around the viewable area.

I know there has to be a better way than this.
Can you do it right in Zoom browser?

I think a 100% crop means you crop part of the image but you dint set/change the dip/poi dimensions.
Its nothing to do with zooming in to 100%

Dave Bass is correct.

Though you do not need to zoom to 100%, most people do - so they can more accurate select the area they are cropping to. The "100%" referred to in the phrase "100% Crop" is 100% of the native size of the capture. For example, my 10d has a native image size of 3072 x 2048. When I post to the forum, I shrink that down to 768 x 512. THAT is a 25% post, as it is 25% of the native size.

That is when you open your photo in Photoshop, and without resizing the shot, then using the rectangle selection tool, select an area, then crop away every thing other than the selection. For the purpose of posting here, you want the selection to have a longest dimension of no more than 800 pixels.

The resulting image is a 100% crop. Because 1) it is at 100% of the native shot, and 2) it is a cropped portion of a larger shot.

When you post that, the primary purpose is to show sharpness (or lack of sharpness), or to draw attention to a certain area of a shot. It is not usually meant to be a final image for printing.

In THIS POST (http://www.photography-on-the.net/forum/showpost.php?p=1939305&postcount=6), the lower shot is a 100% crop.

Rad

[dave_bass5]

Rad
what happend in my Quote. You seem to have dpi/ppi wrong.
No big deal, just wanted to point it out.

[Keith R]

I reckon Rad spell-checked his posting and dint notice it changed your comments...

[Radtech1]

I reckon Rad spell-checked his posting and dint notice it changed your comments...

Well, sheet howdy. I'll be dipped in batter and flipped in the air if ol' Keith there dint cypher this problem out real good.

Rad

[S.E.V.]

So without resizing the original shot you crop a section you want to show up close and size it to 800 largest dimension overall and that is a 100% crop?

Example: I take a picture of a squirrel in a tree, while keeping the image at its native res, crop the area with the squirrel= 100% crop.

[Radtech1]

So without resizing the original shot you crop a section you want to show up close and size it to 800 largest dimension overall and that is a 100% crop?

Example: I take a picture of a squirrel in a tree, while keeping the image at its native res, crop the area with the squirrel= 100% crop.


aboluley

[S.E.V.]

Thanks for verifying. I learn something new every day. Thats why i love this forum:D

[*Martian]

when you save the crop, what "quality" level do you choose for posting?

[dave_bass5]

when you save the crop, what "quality" level do you choose for posting?

It shoudl be the highest possible.
You are trying to show part of the image untouched by PP.

[gcogger]

So without resizing the original shot you crop a section you want to show up close and size it to 800 largest dimension overall and that is a 100% crop?

Example: I take a picture of a squirrel in a tree, while keeping the image at its native res, crop the area with the squirrel= 100% crop.

Just to be absolutely clear:
- Crop the bit you want. In Photoshop, do not enter any pixel or physical dimensions into the dimensions for the crop (make sure they're empty) - just drag a rectangle and crop the image.
- Do not resize it afterwards. If you want an image 800 pixels wide, make sure you have dragged a rectangle 800 pixels wide when making the crop.

[Damo77]

Even easier than that, choose your Marquee tool (not your Crop tool) and choose Fixed Size. Enter 800px width and place your marquee, then choose Crop from the Edit menu.

[dave_bass5]

Just to be absolutely clear:
- Crop the bit you want. In Photoshop, do not enter any pixel or physical dimensions into the dimensions for the crop (make sure they're empty) - just drag a rectangle and crop the image.
- Do not resize it afterwards. If you want an image 800 pixels wide, make sure you have dragged a rectangle 800 pixels wide when making the crop.

I thought you could enter a size in the crop boxes as long as you dont specify a dpi or ppi size.

[Damo77]

Yes, but it'll change your resolution to suit your dimensions. You'll end up with some weird resolution like 129.386ppi! Not particularly suitable for anything!

[dave_bass5]

Yes, but it'll change your resolution to suit your dimensions. You'll end up with some weird resolution like 129.386ppi! Not particularly suitable for anything!

Really? I cant see that in PSCS3 (willing to be shown though).
Using both the clear crop box and dragging out part of an image and entering 800px X 531px for example is still giving me an image that is 72dpi according to PSCS3 in image size.

Am i missing something?

[Damo77]

Yes ... watch the image after you press Enter. The size changes: it's resampling.

[Damo77]

Yes, but it'll change your resolution to suit your dimensions. You'll end up with some weird resolution like 129.386ppi! Not particularly suitable for anything!

I should elaborate - what I said above doesn't apply if you enter pixels as dimensions. It applies if you enter cm, or inches, or whatever.

[dave_bass5]

Ah right.
I must admit i don't normally enter a dimension for a 100% crop, rather i just drag the crop tool over the area i want but i like the marquee way you suggested.
Thanks