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

Reply
 
Thread Tools Search this Thread
Old Jun 21, 2007, 10:20 AM   #1
Junior Member
 
rumplestilts's Avatar
 
Join Date: Jul 2006
Posts: 13
Default

Recently was using my *istDS with the built-in flash and found that occasionally the built-in flash would do a staccato pre-flash(?) which I assume was to help the auto-focus. (This was in a room where the lights were dimmed.)

These shots were well-focused. Others that did not initiate(?) the staccato flashing were not well-focused. How does the *istDS determine when to use this assist mechanism (assuming it actually has one) and is there any way I can force it to be used (as the results were good).

Thanks!

Barry
rumplestilts is offline   Reply With Quote
Sponsored Links
Old Jun 21, 2007, 10:23 AM   #2
Senior Member
 
robar's Avatar
 
Join Date: Mar 2005
Location: D/FW area Texas
Posts: 7,590
Default

barry , i don't think there are settings for that. i may have missed it tho.

roy
robar is offline   Reply With Quote
Old Jun 21, 2007, 10:26 AM   #3
Junior Member
 
rumplestilts's Avatar
 
Join Date: Jul 2006
Posts: 13
Default

Roy,

Is there a flash-assisted auto-focus going in or am I just misinterpreting what I am seeing?

Thanks!
rumplestilts is offline   Reply With Quote
Old Jun 21, 2007, 10:41 AM   #4
Senior Member
 
robar's Avatar
 
Join Date: Mar 2005
Location: D/FW area Texas
Posts: 7,590
Default

yes, that's what it is. depending on mode it's also determining exposure.

roy
robar is offline   Reply With Quote
Old Jun 21, 2007, 10:42 AM   #5
Senior Member
 
robar's Avatar
 
Join Date: Mar 2005
Location: D/FW area Texas
Posts: 7,590
Default

where in Texas???
robar is offline   Reply With Quote
Old Jun 21, 2007, 11:06 AM   #6
Junior Member
 
rumplestilts's Avatar
 
Join Date: Jul 2006
Posts: 13
Default

robar wrote:
Quote:
where in Texas???
West of the Pecos; El Paso.

rumplestilts is offline   Reply With Quote
Old Jun 21, 2007, 12:05 PM   #7
Senior Member
 
robar's Avatar
 
Join Date: Mar 2005
Location: D/FW area Texas
Posts: 7,590
Default

been thru and stayed there many times

roy
robar 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 2:52 PM.