Author Topic: DSLR simple question, maybe!
Mortalis3 
Posts: 1,421
Registered: Apr 30, '08
Extended Info (if available)
Real Post Cnt: 1,414
User ID: 0
Subject: DSLR simple question, maybe!
OK, shoot me if this has been asked before. It's probably the most basic, simplest question regarding DSLR's.

Point and shoot cameras require a partial press of the shutter button and momentary lapse of time to activate the automatic focus. Do DSLR's remove this requirement since they supoosedly "see through" the same lens that takes the picture?

 

-----signature-----
Oh, the DAoC memories
It was my first
Dont they say you never forget your first one?
Link to this post
Raiztlin 
Title: Dick Tracy
Posts: 8,885
Registered: Jan 23, '02
Extended Info (if available)
Real Post Cnt: 8,688
User ID: 626,780
Subject: DSLR simple question, maybe!
Yes. It is one of the many advantages with a DSLR

 

-----signature-----
I has a flavor!
CC always welcome.
Link to this post
_Kewk_ 
Title: Sith Lord
Posts: 10,167
Registered: Dec 17, '02
Extended Info (if available)
Real Post Cnt: 9,952
User ID: 749,729
Subject: DSLR simple question, maybe!
Mortalis3 posted:
OK, shoot me if this has been asked before. It's probably the most basic, simplest question regarding DSLR's.

Point and shoot cameras require a partial press of the shutter button and momentary lapse of time to activate the automatic focus. Do DSLR's remove this requirement since they supoosedly "see through" the same lens that takes the picture?


If you have it on auto focus you still have a split second before it finishes focusing. DSLR's do take a partial press for auto focus to focus. If it cannot find the focus then you have a bit more time. Nikon is slower in this area in comparison to Canon because the Nikon AF motor is in the camera body as opposed to Canon having them in the lens. This was a choice by Nikon to give compatibility to all of it's old SLR lenses on new DSLR bodies.

If it is manual focus well then the amount of time depends on how fast you can focus.

 

-----signature-----
(none)
Link to this post
Mortalis3 
Posts: 1,421
Registered: Apr 30, '08
Extended Info (if available)
Real Post Cnt: 1,414
User ID: 0
Subject: DSLR simple question, maybe!
Thanks

 

-----signature-----
Oh, the DAoC memories
It was my first
Dont they say you never forget your first one?
Link to this post
Raiztlin 
Title: Dick Tracy
Posts: 8,885
Registered: Jan 23, '02
Extended Info (if available)
Real Post Cnt: 8,688
User ID: 626,780
Subject: DSLR simple question, maybe!
_Kewk_ posted:
Mortalis3 posted:
OK, shoot me if this has been asked before. It's probably the most basic, simplest question regarding DSLR's.

Point and shoot cameras require a partial press of the shutter button and momentary lapse of time to activate the automatic focus. Do DSLR's remove this requirement since they supoosedly "see through" the same lens that takes the picture?


If you have it on auto focus you still have a split second before it finishes focusing. DSLR's do take a partial press for auto focus to focus. If it cannot find the focus then you have a bit more time. Nikon is slower in this area in comparison to Canon because the Nikon AF motor is in the camera body as opposed to Canon having them in the lens. This was a choice by Nikon to give compatibility to all of it's old SLR lenses on new DSLR bodies.

If it is manual focus well then the amount of time depends on how fast you can focus.


This is only true for old lenses. Newer lenses from Nikon have the AF motor build in. (And the low-end bodies don't have even have an AF-motor)

Now add Nikons way better AF system, and we have a winner grin

 

-----signature-----
I has a flavor!
CC always welcome.
Link to this post
tsingtao2 
Posts: 15,770
Registered: Oct 10, '00
Extended Info (if available)
Real Post Cnt: 15,298
User ID: 48,832
Subject: DSLR simple question, maybe!
and Nikon's have CLS, but the new canon 7D has something similar.

I half press my DSLR all the time when my youngest daughter is on the field preforming, always keeping it in focus for when I feel like taking a shot. which is all the time, usually take 300 pics during a 5 min routine...LOL and yes, that's 1 per second, sometimes when shes tossing her flag, I shoot 6fps

 

-----signature-----
May the bridges I burn light my way
Isolated in defiance, I will remain
May the bridges I burn light my way
I will never comply, I'll forever defy
Link to this post
-Dirtbrother- 
Posts: 4,101
Registered: Sep 21, '02
Extended Info (if available)
Real Post Cnt: 3,491
User ID: 718,876
Subject: DSLR simple question, maybe!
On somewhat of a side note, the best thing i ever did was move the auto focus button from the shutter to the * on the back of the body. Being able to meter and focus on different buttons is huge.

 

-----signature-----
Link to this post
Raiztlin 
Title: Dick Tracy
Posts: 8,885
Registered: Jan 23, '02
Extended Info (if available)
Real Post Cnt: 8,688
User ID: 626,780
Subject: DSLR simple question, maybe!
yes, I've done the same.

I have my autofocus on me AF-ON button on the back of my camera. I also have the camera set to continious focus, so that whenever I move the focuspoint and hold the AF-ON button, I continually focus on whatever I point at.

Then to recompose, I just let go of the AF-ON button and then recompose.

It's a little bit different at first, but makes shooting alot smoother once you get used to it.

 

-----signature-----
I has a flavor!
CC always welcome.
Link to this post

Valid XHTML 1.0 Transitional Powered by PHP