Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Nikon dSLR

Reply
 
Thread Tools Search this Thread
Old Jul 6, 2005, 1:17 PM   #1
Junior Member
 
Join Date: Jul 2005
Posts: 1
Default

Hi all, Not sure if this should be here or in the Nikon Lens forum, but I have had my D-70 for a number of months now and am using primarily a sigma 18-50 lens. I've been having a fair bit of difficulty getting nice sharp shots manually focusing, particularly when I am doing a wide landscape - the lens will come into focus near infinity, then keep going further out of focus. In good light, the autofocus works quite well. I went to the shop and tried out two brand new lenses (the same sigma 18-50) and had the same problems, so I suppose it seems to be something common with the lenses. My question is, is this a design flaw or is there a purpose for this? (IR?)I'd also love tips people have on focusing the D70, apart from the little focus circle, I find the viewfinder rather claustrophobic, especially on a 3.5 lens in low light. Thanks! (my apologies, for some reason all the breaks in my post seem to keep getting taken out when i send!)
alanw is offline   Reply With Quote
Sponsored Links
Old Jul 6, 2005, 10:18 PM   #2
Junior Member
 
Join Date: Jul 2005
Posts: 4
Default

I am always focusing in low light using manual focus with non-auto lenses and telescopes. One does not have to be perfectly focused in the viewfinder to get good focus. Being "ole school", I learned how to just distances and set camera DOF from markings on the camera lenses. But those that are weaned on auto-everything, do not always have this skill. Also in the manual mode, there is a focus LED on the lower left in the viewfinder that gives an indicator of focus. Another method is to use a magnifier. In this web I created, its explained about the different magnifiers available for the D70....

http://www.barrie-tao.com/d70finder.html

Ciao....Barry
Rat8bug is offline   Reply With Quote
Old Jul 6, 2005, 10:58 PM   #3
NHL
Senior Member
 
NHL's Avatar
 
Join Date: Jun 2002
Location: 39.18776, -77.311353333333
Posts: 11,547
Default

alanw wrote:
Quote:
... the lens will come into focus near infinity, then keep going further out of focus.
All lenses do this

I believe it's for thermal expansion and for the occasional accessory, such as extension tubes or teleconverter, that a photographer might add between the lens and the camera...
NHL is offline   Reply With Quote
 
Reply


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 8:32 AM.