Go Back   Steve's Digicams Forums >

LinkBack Thread Tools Search this Thread
Old Aug 1, 2010, 8:30 AM   #11
Senior Member
rjseeney's Avatar
Join Date: Dec 2004
Location: Taylor Mill, Kentucky
Posts: 2,398

Originally Posted by dumathecheetah View Post
Hi JohnG,

Thank you and the other posters in this thread--very useful information.

I too am looking for a cheap low f-stop lens to get for my D40x to better achieve the blurred background effect (and to use in low lighting conditions). With respect to your post, I have a few questions: What is a "1.5 crop" camera? Is the D40x a 1.5 crop camera? If so, and if I'll be limited in my ability to take a close-up shot of something (within a few feet of it) with a Nikon 50mm f/1.8D lens, given everything else the same about the camera shot conditions, will having a lens with a lower f-stop limit (e.g., 50mm f/1.4 AF-S lens) be able to compensate for the cropped picture and give me a wider left-right field of view?

I'm sorry if it's unclear what I'm asking. Please let me know if so.

Thank you in advance.
To answer your question, no. A 1.5 crop camera refers to the sensor size, being smaller than the size of film. It is a reference point only to help those familiar with 35 mm cameras to understand how the field of view is affected. When mounted on a DSLR, you have to multiply the focal length by 1.5 to get the effective focal length of the lens. so a 50mm lens on a DSLR has a field of view of and functions like a 75mm on a film camera. Lower f stops do not affect field of view, or close focus distance of a lens. The only way to get a wider field of view is to get a wider lens.
rjseeney 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 On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 3:48 PM.