ClubSNAP Photography Forums

Go Back   ClubSNAP Photography Forums > Equipment Discussions > Canon

Canon Exhilaration Of Sight


 
Thread Tools
Old 28th April 2009   #1
menonsudhir1234
New Member
 
Join Date: Apr 2009
Posts: 16
Default How to get sharp focus in low light conditions using flash ?

Hi ,
I often face problem with photography in low light condition (indoor) using my canon 30D. The focus most of the times is not correct. I focus on the person but person comes blurred, and something else is sharp. I tired with inbuilt flash as well as canon 220EX flash. Sharpness improves, but the subject becomes overexposed (Whitish), whereas the background still remains darker. So what exactly I need to do to get sharp and properly focused , and evenly balanced photos.
menonsudhir1234 is offline  
Old 28th April 2009   #2
engrmariano
Member
 
engrmariano's Avatar
 
Join Date: Oct 2007
Location: Rivervale
Posts: 1,405
Default Re: How to get sharp focus in low light conditions using flash ?

pls post some sample images with exif.
__________________
WTS: 16-35L Mk 1 (WTT: Sigma 12-24) & Sigma 150 Macro to fund 85L
engrmariano is offline  
Old 28th April 2009   #3
longkangman
Senior Member
 
Join Date: Jul 2005
Location: sewage drain/manhole
Posts: 4,960
Default Re: How to get sharp focus in low light conditions using flash ?

could minus the flash output help?
__________________
AMPA | Studio TFCD :-)
longkangman is offline  
Sponsored Link
Old 28th April 2009   #4
chalib
Member
 
Join Date: Oct 2007
Posts: 1,445
Default Re: How to get sharp focus in low light conditions using flash ?

If you are on A mode, your flash will be as fill in flash.... your cam meter ambience light. In low light where your shutter speed is too low and your subject move, you will get a blur pics

Play in M mode, adjust A and S to get the ambience light as you want and enough S to freeze subject movement then let the flash to adjust accordingly in ETTL

Last edited by chalib; 28th April 2009 at 12:40 PM.
chalib is offline  
Old 28th April 2009   #5
spartacus.ret
Senior Member
 
Join Date: Jun 2005
Posts: 2,358
Default Re: How to get sharp focus in low light conditions using flash ?

Originally Posted by chalib View Post
In low light where your shutter speed is too low and your subject move, you will get a blur pics.
i don't think he is talking about motion blur (from both subject movement and handshake), but rather the camera's inability to correctly lock focus in low light.
spartacus.ret is offline  
Old 28th April 2009   #6
calebk
Senior Member
 
Join Date: Jul 2006
Location: Clementi
Posts: 10,476
Default Re: How to get sharp focus in low light conditions using flash ?

Looks like two problems are going on here. First, misfocus, and second, poor flash to ambient light compensation.

About misfocus. It seems as though you're leaving the camera to decide on its own focus point? You'll get poor results from this because what you think should be in focus may not be what the camera thinks should be in focus. To counteract this, you should instead select your own focus point.
__________________
deviantART | fotologue
calebk is offline  
Old 28th April 2009   #7
cks2k2
Member
 
Join Date: Feb 2009
Posts: 109
Default Re: How to get sharp focus in low light conditions using flash ?

2nd curtain flash? Might evenly brighten the scene.
cks2k2 is offline  
Old 28th April 2009   #8
calebk
Senior Member
 
Join Date: Jul 2006
Location: Clementi
Posts: 10,476
Default Re: How to get sharp focus in low light conditions using flash ?

Originally Posted by cks2k2 View Post
2nd curtain flash? Might evenly brighten the scene.
2nd Curtain Sync means the flash fires just before the shutter closes. Nothing to do with even brightness over the scene.
__________________
deviantART | fotologue
calebk is offline  
Old 28th April 2009   #9
Tantalize
Member
 
Tantalize's Avatar
 
Join Date: Mar 2009
Location: Kembangan
Posts: 115
Default Re: How to get sharp focus in low light conditions using flash ?

I used to have problems with over-exposure in people, the problem fixed when I get a diffuser for my camera. You can check the diffuser out at the CP. Hope this helps.
Tantalize is offline  
Old 28th April 2009   #10
blurry80
Member
 
Join Date: Jul 2007
Location: Toa Payoh
Posts: 433
Default Re: How to get sharp focus in low light conditions using flash ?

Person... most likely is motion blur. Shutter speed too slow however background is bright
Flash.. with dark backgrounds this is due to fast shutter speed.Try searching "balancing ambient with flash"
Whitish.. probably flash is too close and undiffused. Try bouncing flash off the ceiling if its white or bouncing off any white walls.

Evenly balance photos comes with all these conditions well balanced.
__________________
Canon 400D 50mm,28-75 F2.8, Ricoh GRDIII 28mm F1.9
www.flickr.com/jenson_goh
blurry80 is offline  
Old 28th April 2009   #11
adrenalize
New Member
 
Join Date: Apr 2009
Location: Singapore
Posts: 17
Default Re: How to get sharp focus in low light conditions using flash ?

Originally Posted by calebk View Post
2nd Curtain Sync means the flash fires just before the shutter closes. Nothing to do with even brightness over the scene.
Which one is best to use,the 1st curtain or the 2nd curtain?and when can it be best to use?If you have an external flash, can this settings applicable. I'm using a third party flash which is a Sunpak RD2000..Sorry, i'm still a newbie.
adrenalize is offline  
Old 28th April 2009   #12
calebk
Senior Member
 
Join Date: Jul 2006
Location: Clementi
Posts: 10,476
Default Re: How to get sharp focus in low light conditions using flash ?

Originally Posted by Tantalize View Post
I used to have problems with over-exposure in people, the problem fixed when I get a diffuser for my camera. You can check the diffuser out at the CP. Hope this helps.
A diffuser will cut down on harshness, but it will not bring balance to the image. In order to bring balance to the image, your exposure settings must let in enough light to the image.
__________________
deviantART | fotologue
calebk is offline  
Old 28th April 2009   #13
chalib
Member
 
Join Date: Oct 2007
Posts: 1,445
Default Re: How to get sharp focus in low light conditions using flash ?

Originally Posted by spartacus.ret View Post
i don't think he is talking about motion blur (from both subject movement and handshake), but rather the camera's inability to correctly lock focus in low light.
You should read what TS has written carefully and slowly then digest
chalib is offline  
Old 28th April 2009   #14
Dream Merchant
Member
 
Join Date: Jan 2007
Posts: 4,154
Default Re: How to get sharp focus in low light conditions using flash ?

Originally Posted by menonsudhir1234 View Post
Hi ,
I often face problem with photography in low light condition (indoor) using my canon 30D. The focus most of the times is not correct. I focus on the person but person comes blurred, and something else is sharp. I tired with inbuilt flash as well as canon 220EX flash. Sharpness improves, but the subject becomes overexposed (Whitish), whereas the background still remains darker. So what exactly I need to do to get sharp and properly focused , and evenly balanced photos.
Post up sample photos that you described and exif data.

Something like "I focus on the person but person comes blurred, and something else is sharp." has many possibilities.

"I tired with inbuilt flash as well as canon 220EX flash. Sharpness improves,". Which flash were you using when you got the 'blurred' photos?
Dream Merchant is offline  
Old 28th April 2009   #15
charlesleong
Member
 
Join Date: Sep 2007
Posts: 1,073
Default Re: How to get sharp focus in low light conditions using flash ?

maybe try to use M mode - Av doesn't meter with flash compensation. (assuming you're flashing in Av)
__________________
5D+BG+580EX2|35f2|50f1.4|85f1.8|135L|17-200Lf4
charlesleong is offline  
Old 28th April 2009   #16
sabrecruz
Member
 
Join Date: Oct 2007
Posts: 67
Default Re: How to get sharp focus in low light conditions using flash ?

Set to "M' mode:-

ISO 100
Shutter 1/200-1/250
Aperture f8
Use a diffuser and adjust flash angle from there
sabrecruz is offline  
Old 28th April 2009   #17
catchlights
Senior Member
 
Join Date: Sep 2004
Location: Punggol
Posts: 10,799
Default Re: How to get sharp focus in low light conditions using flash ?

Originally Posted by menonsudhir1234 View Post
Hi ,
I often face problem with photography in low light condition (indoor) using my canon 30D. The focus most of the times is not correct. I focus on the person but person comes blurred, and something else is sharp. I tired with inbuilt flash as well as canon 220EX flash. Sharpness improves, but the subject becomes overexposed (Whitish), whereas the background still remains darker. So what exactly I need to do to get sharp and properly focused , and evenly balanced photos.
My guess for #1 situration, you are shooting with AV mode without flash, low light means low shutter speed. so motion blur on your subject.

#2 situation, you are still using Av mode or P mode with built in flash, and your subject is very close to you and background is far far away, hence overexposed on your subject and underexposed on background.

can tell you what setting to use, or add this add that, or even buy what lens or flash ect.....but you still will not understand how things work.

why don't go and pick up a basic photography book from National Library and start reading?

anyway, read some of the replies and suggestions here, some are not workable, it wouldn't help you at all, and you will not know that if you don't understand the basic.
__________________
Shoot to Live, Live to Shoot
www.foto-u.com | www.benjaminloo.com | email
catchlights is offline  
Reply

Bookmarks

Thread Tools

Forum Jump


All times are GMT +8. The time now is 12:48 AM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Copyright © 2002 - 2009 ClubSNAP.com
Page generated in 0.11783 seconds with 7 queries