Forums


Go Back   The TrekEarth Forums >

Notices

Reply
 
Thread Tools
  #1  
Old 11-07-2010, 01:40 PM
ranadip_rc's Avatar
ranadip_rc ranadip_rc is offline
TE Newbie
Thread Starter
 
Join Date: Nov 2010
Posts: 5
Question ASA settings on camera is different than ASA of the flim

I have a Nikon FM2. With a 400 ASA film inside I have tried taking picture by setting the ASA on camera to 100, 200 and 400.
I was shooting with shutter speed set at "B". I altered the shutter press time 5,10, 15 secs respectively. I didn't have a tripod at that time, so to reduce the time span of keeping the camera still I used this technique.
Is this adviceable?
While looking at the pictures I can see the colourof the sky is different in each snaps (you can see the snaps in the attachment). Why is this happening?

Ranadip
Attached Images
File Type: jpg 08220021.JPG (65.3 KB, 6 views)
Attached Files
File Type: zip ranadip.zip (50.8 KB, 4 views)
Reply With Quote
  #2  
Old 11-07-2010, 03:04 PM
Didi's Avatar
Didi Didi is offline
TE Expert
 
Join Date: Jul 2003
Location: France Orléans
Posts: 12,254
Default Long exposure

With long exposure the rule are not applied because of the Schwarzschild effect
There is some correction to apply in exposure and sometimes you should use some filters.
No similar problems in numeric pictures.

You must read some articles about long exposure in silver photography.

Last edited by Didi; 11-07-2010 at 03:37 PM.
Reply With Quote
  #3  
Old 11-08-2010, 02:04 PM
ranadip_rc's Avatar
ranadip_rc ranadip_rc is offline
TE Newbie
Thread Starter
 
Join Date: Nov 2010
Posts: 5
Default

Hi Didi,

Thanks for the information.
Any particular article you advice for reading?
Reply With Quote
  #4  
Old 11-08-2010, 04:39 PM
Didi's Avatar
Didi Didi is offline
TE Expert
 
Join Date: Jul 2003
Location: France Orléans
Posts: 12,254
Default

You can write a request in Google
Very Easy

I have my information by some french books about colour photography

But this problem does not exist in numerical photo.
Reply With Quote
Reply


Tags
asa

Thread Tools

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

Forum Jump


All times are GMT. The time now is 04:41 AM.



Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.
explore TREKEARTH