Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Canon Lenses

Reply
 
Thread Tools Search this Thread
Old Feb 15, 2007, 5:54 AM   #11
NHL
Senior Member
 
NHL's Avatar
 
Join Date: Jun 2002
Location: 39.18776, -77.311353333333
Posts: 11,547
Default

I tend to agree with djb I have a 1D MrkII, my back-up is a cropped 10D, and planning to get a 5D; However all theses cameras do not take any EF-S lenses!
NHL is offline   Reply With Quote
Old Feb 15, 2007, 7:57 AM   #12
Senior Member
 
surfnron's Avatar
 
Join Date: Jun 2003
Posts: 578
Default

Something that was mentioned in passing may be worth consideration. Camera shake is more noticable when shooting macro, and the longer the lens, the more noticable the shake is. I have the Sigma 150 and it's very difficult to hand hold because you normally want to stop down to increase dof. That means a slower shutter speed. I try to use my tripod as much as possible with the 150.
Ron
PS: I really do like the lens though....
surfnron is offline   Reply With Quote
Old Feb 15, 2007, 5:49 PM   #13
NHL
Senior Member
 
NHL's Avatar
 
Join Date: Jun 2002
Location: 39.18776, -77.311353333333
Posts: 11,547
Default

surfnron

Usually macros are shot with flash... (i.e. small aperture to increase DOF) :idea:
-> The flash pulse is always short enougth to freeze any motion regardless of shutter speed
NHL is offline   Reply With Quote
Old Feb 15, 2007, 5:53 PM   #14
djb
Senior Member
 
Join Date: Apr 2003
Posts: 2,289
Default

I agree 100% with NHL. Unless you want to use natural lighting then it's gonna be tough.

dennis
djb is offline   Reply With Quote
Old Feb 15, 2007, 6:23 PM   #15
Senior Member
 
surfnron's Avatar
 
Join Date: Jun 2003
Posts: 578
Default

NHL, I hope you're right because I just got a flash last fall, and just finished building a bracket so I can get the flash off the camera.
Ron
surfnron is offline   Reply With Quote
Old Feb 15, 2007, 9:02 PM   #16
NHL
Senior Member
 
NHL's Avatar
 
Join Date: Jun 2002
Location: 39.18776, -77.311353333333
Posts: 11,547
Default

surfnron wrote:

Quote:
NHL, I hope you're right...
A flash pulse is normally 1/1000s or less, but usually several magniture faster when you're at macro distances so pull-out that diffuser



Quote:
I just got a flash last fall, and just finished building a bracket so I can get the flash off the camera.
... You might need two (to cancel the shadow! :-)) the further the flash is off camera -> the longer the shadow cast :idea:


BTW next time you head down to Great Falls, don't forget to stop by Conowingo DAM which is on the way: There's always some American eagles there

NHL is offline   Reply With Quote
Old Feb 16, 2007, 6:17 PM   #17
Senior Member
 
surfnron's Avatar
 
Join Date: Jun 2003
Posts: 578
Default

"You might need two (to cancel the shadow! :-)) the further the flash is off camera -> the longer the shadow cast " :idea:

I'd like to get a second flash, but it will have to wait for a while.

"BTW next time you head down to Great Falls, don't forget to stop by Conowingo DAM which is on the way: There's always some American eagles there"

Thanx NHL, When I go back, I'll have to take a look.

Ron


surfnron is offline   Reply With Quote
Old Feb 18, 2007, 5:48 AM   #18
Member
 
dougsmit's Avatar
 
Join Date: Sep 2002
Posts: 90
Default

Flash stops subject motion but I still lose macro shots to camera motion which is worse with a longer lens and greater magnification. This is no problem when the light is dim enough to shoot several stops underexposed at 1/250 but some macro subjects bask in the sun and the flash is more of a fill than the only light to consider.
Example (note motion making crescents out of the specular highlights):


With macro, don't be afraid to try FP (high speed) flash when shooting close and sunny. 1/500 with flash:


dougsmit is offline   Reply With Quote
Old Feb 18, 2007, 7:45 AM   #19
NHL
Senior Member
 
NHL's Avatar
 
Join Date: Jun 2002
Location: 39.18776, -77.311353333333
Posts: 11,547
Default

... and I agree dougsmit at close distance the flash works great in High-Speed Sync mode to do a fill
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 4:53 AM.