Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Pentax / Samsung dSLR, K Mount Mirrorless

Thread Tools Search this Thread
Old Jul 1, 2005, 7:53 AM   #1
Senior Member
nlp239's Avatar
Join Date: Jan 2005
Posts: 719

I know what DoF is but I am having the hardest time understanding and making the adjustments with the istD.

I found it a lot easier with the SP and ME - too many buttons and things to remember on the istD - must be getting old(er).

Anyway, know of any tutorials or sites specific to the istD which might help?

nlp239 is offline   Reply With Quote
Sponsored Links
Old Jul 1, 2005, 9:29 AM   #2
Senior Member
errno_gmm's Avatar
Join Date: Feb 2005
Posts: 518

Not much to know. Higher f-stops (smaller apeture) will give maximum depth of field - defined as the area of acceptable sharpness. Widest apetures have very shallow depth of fields - like when you take a photo of a flower, the flower is in focus and the background is all blurry. Anything outside the depth of field will not be focused.

The depth of field preview is your friend. When you mount a lens, it is opened to the widest apeture to give the most light to the viewfinder. Clicking DOF prievew will stop the lens down to what ever apeture is set (use Av or M mode to do this). It will allow you to see what is focused etc in the view finder before taking the picture (although it will get darker as you stop it down to the smaller apetures because there is less light)

Hope this helps, anyone here can answer more specific questions, but what exactly dont you understand - i can give a more specific answer
errno_gmm is offline   Reply With Quote
Old Jul 1, 2005, 4:54 PM   #3
Senior Member
Nols's Avatar
Join Date: Mar 2005
Posts: 154

From what I know (very little), DOF is lens-specific. Anyway, here's a link to a luminous landscape article that might help. It contains a link to a free software download to compute DOF.


Nols is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 2:55 AM.