Canreef Aquatics Bulletin Board  

Go Back   Canreef Aquatics Bulletin Board > General > Reef

Reply
 
Thread Tools Display Modes
  #41  
Old 12-15-2011, 05:39 AM
daniella3d's Avatar
daniella3d daniella3d is offline
Member
 
Join Date: Jun 2010
Location: longueuil, quebec
Posts: 1,979
daniella3d is on a distinguished road
Default

But you would not shoot corals at 400mm.. it's better with a smaller lens from closer or a macro lens. My 400mm focus at 12 feet...so I would not even be able to take a photo of the aquarium without hitting the wall.

I did tons of macro of insects and never used a tripod and with the aquarium and either LED or MH, the light is so strong that getting the speed to get sharp photos is not a problem. If there is blur from the motion of the person, usually there is not enough speed and the coral will be blurred if it is moving, at least the polyps will.

If you use a slow shutter, you might get blurry pic tripod or not.

Quote:
Originally Posted by MarkoD View Post
It all depends what focal length you use. I like shooting telephoto to compress the background. And when shooting at 400mm you need at least a 1/400 of a second shutter spee; which is impossible when using off camera flash cuz the sync speed is only 1/200. So the only way to avoid camera shake is to use a tripod
__________________
_________________________
More fish die from human stupidity than any other disease...
Reply With Quote
  #42  
Old 12-15-2011, 05:45 AM
daniella3d's Avatar
daniella3d daniella3d is offline
Member
 
Join Date: Jun 2010
Location: longueuil, quebec
Posts: 1,979
daniella3d is on a distinguished road
Default

It all depends on the shutter speed.

Quote:
Originally Posted by lastlight View Post
I don't see how any shot wouldn't be at least a little better shot from a tripod?
__________________
_________________________
More fish die from human stupidity than any other disease...

Last edited by daniella3d; 12-15-2011 at 05:48 AM.
Reply With Quote
  #43  
Old 12-15-2011, 06:38 AM
Funky_Fish14's Avatar
Funky_Fish14 Funky_Fish14 is offline
Member
 
Join Date: Apr 2005
Location: (Close to) Millet, Alberta
Posts: 1,153
Funky_Fish14 is on a distinguished road
Send a message via MSN to Funky_Fish14
Default

Quote:
Originally Posted by daniella3d View Post
I did tons of macro of insects and never used a tripod
You can get a lot closer to an insect when there isn't a wall of glass in the way though
I've got wicked shots of insects with my cam or even phone, but any shots I take of stuff in my tank are junk cause they are 10-20" back.
*above comments without tripod*

As im sure you know, the degree of movement of the image in the lens is amplified as you get further away from it. Shaking 1/10th of a milimeter up close and it doesnt look like much, but shooting something 20 inches away is very visible. Yes the camera (or settings) might be able to compensate for it, but the less movement, the less chance for light to be 'diverted incorrectly' or 'misinterpreted'. I may know little about cameras, but these are basic physics principles.
__________________
No more tanks - Laying off the ReefCrack for awhile!
Cheers,
Chris

Last edited by Funky_Fish14; 12-15-2011 at 06:41 AM.
Reply With Quote
  #44  
Old 12-15-2011, 06:51 AM
mark's Avatar
mark mark is offline
Member
 
Join Date: Nov 2002
Location: Edmonton AB
Posts: 4,212
mark is on a distinguished road
Default

and I thought I hijacked threads
__________________
my tank
Reply With Quote
  #45  
Old 12-15-2011, 01:06 PM
daniella3d's Avatar
daniella3d daniella3d is offline
Member
 
Join Date: Jun 2010
Location: longueuil, quebec
Posts: 1,979
daniella3d is on a distinguished road
Default

No not really, where did you get that? The movement is amplified with the longer focal, but if you shoot from 4" with a 100mm lens, that will not change your exposure usually and will not be worse than if you shoot at 20 inches. I was shooting macros of things even at 3 feet because a dragonfly is quite large, opposite to a tiny fly.

shaking at 1/10 of a mm? does that exist? or did you mean 1/10th of a second? Because I am not aware of any camera that can focus that close!

I think you are confusing between shutter speed and focal length or distance to subject.

My macro lens was having a minimum focusing distance of 12 inches. It was not possible to use it closer to that. Now with my small Kodak Playsport I can get as close as 5", but it does not matter if I am 5" or 20" away...same thing because same ligting and same shutter speed and ISO.

What you are describing are not basic photo principle. Basic principles in photography is, the shake is amplified by the slower shutter speed, the higher focal and the higher F number and a lower ISO.

It is not the distance to the subject at all, that has no influence. The only thing that can influence the distance to subject and render a photo unsharp is the atmospheric haze outside.

Here is a bug at minimum focusing distance but at 1/200th of a secon to create motion on the wings:



Here is one taken at 3 feet distance. at 1/1000s of a second everything was sharp, including the wing motion because that dragonfly was in flight and flapping very fast:



So as you can see here it is the shutter speed that freeze the motion, not the distance to subject. NO matter how far I would be from the subject. Of course at some point I would be too far and would get no detail in the subject, but that's another story and that does not apply to aquarium.

I never used a tripod to do my macro shots and rarely had blur.

But enough for the basic 101 photography course

To the original poster, if you don't want to share pics or show them, that's ok, at least take some for yourself so that you can check the coral growth later on...it is fun to watch later


Sorry for the off topic


Quote:
Originally Posted by Funky_Fish14 View Post
You can get a lot closer to an insect when
As im sure you know, the degree of movement of the image in the lens is amplified as you get further away from it. Shaking 1/10th of a milimeter up close and it doesnt look like much, but shooting something 20 inches away is very visible. Yes the camera (or settings) might be able to compensate for it, but the less movement, the less chance for light to be 'diverted incorrectly' or 'misinterpreted'. I may know little about cameras, but these are basic physics principles.
__________________
_________________________
More fish die from human stupidity than any other disease...

Last edited by daniella3d; 12-15-2011 at 01:11 PM.
Reply With Quote
  #46  
Old 12-15-2011, 04:16 PM
Madreefer's Avatar
Madreefer Madreefer is offline
Member
 
Join Date: Nov 2008
Location: Prince George
Posts: 2,064
Madreefer is on a distinguished road
Default

Reply With Quote
  #47  
Old 12-15-2011, 05:34 PM
rastaangel rastaangel is offline
Member
 
Join Date: Jan 2011
Location: Kindersley, Sk
Posts: 221
rastaangel is on a distinguished road
Default

Ya WTF batman? this isnt taking pics 101
__________________
Hi, my name is Corey... And im a reefaholic.
Reply With Quote
  #48  
Old 12-15-2011, 05:49 PM
Bblinks's Avatar
Bblinks Bblinks is offline
Moderator
 
Join Date: Oct 2010
Location: Coquitlam B.C.
Posts: 3,033
Bblinks is on a distinguished road
Default

lol, I was thinking the same thing. I will have some pictures posted on my comparison by next week.
__________________
Though a tree grow ever so high, the falling leaves return to the root.

300DD - 140DD



TOTM Fall 2013
Reply With Quote
  #49  
Old 01-12-2012, 12:47 AM
rastaangel rastaangel is offline
Member
 
Join Date: Jan 2011
Location: Kindersley, Sk
Posts: 221
rastaangel is on a distinguished road
Default

FINALLY THERE ON!!! Heres a shot of 4 SOL blues @ 100%
__________________
Hi, my name is Corey... And im a reefaholic.
Reply With Quote
  #50  
Old 01-12-2012, 01:16 AM
mark's Avatar
mark mark is offline
Member
 
Join Date: Nov 2002
Location: Edmonton AB
Posts: 4,212
mark is on a distinguished road
Default

what size of tank and how many MH before?
__________________
my tank
Reply With Quote
Reply


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 03:11 PM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.