Airshow question


Mike-P

Link Posted 16/08/2009 - 11:59
SR on or off?

Thanks.
. My Flickr

royd63uk

Link Posted 16/08/2009 - 12:24
on at least i always have it on for my birds in flight shots.

Roy
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery

scottthehat

Link Posted 16/08/2009 - 12:26
for moving objects it should be of as it can add blur,
still birds on, birds in flight off,
just keep snapping,

http://www.pentaxphotogallery.com/scottbenson

http://s727.photobucket.com/albums/ww272/scottthehat/


CAMERAS = k200d + battery grip.
nikon d300 + battery grip.
LENSES = tamron aspherical DII 18-200mm f3.5/6.3,
nikon 18-200mm afs vr f3.5/5.6 g dx
sigma 150-500mm apo dg hsm os
sigma 170-500mm apo dg
FLASH = samsung sef36pzf flash + more.

Mike-P

Link Posted 16/08/2009 - 12:32
royd63uk wrote:
on at least i always have it on for my birds in flight shots.


scottthehat wrote:
for moving objects it should be of as it can add blur,

So that's unanimous then ....
. My Flickr

Oggy

Link Posted 16/08/2009 - 12:48
Another vote for 'on'.

George Lazarette

Link Posted 16/08/2009 - 12:51
The SR doesn't add blur. It's using a slow shutter speed that does that - and with SR you may be inclined to use a slow shutter speed.

What SR does is compensate for camera shake. It can't freeze a moving object.

So there is no point in using SR for fast moving subjects, because the subject will dictate a fast shutter speed, thus making SR unnecessary. But if you have it on, it won't hurt. It won't "add blur".

I tend to leave it on all the time, unless using a tripod.

G
Keywords: Charming, polite, and generally agreeable.

pentaxian450

Link Posted 16/08/2009 - 13:23
I second "Grumpy" George. If you think your shutter speed might get on the "low" side, leave it on. Especially with long lenses.
Yves (another one of those crazy Canucks)

ChrisA

Link Posted 16/08/2009 - 13:25
George Lazarette wrote:
The SR doesn't add blur.

Indeed. I think this is another one of these unsubstantiated myths that are entirely without foundation, and would be almost impossible to test.

Imagine a camera that was moving at constant speed in a straight line. The accelerometers that measure shake (in order to tell the electronics to move the sensor in a direction countering the shake) would detect nothing at all.

Superimpose shake on that movement, and the sensors would detect it in the same way as they detect it in an otherwise stationary camera, and counter it in exactly the same way.

Of course, panning a camera by hand is only an approximation to such steady movement, and it's not impossible that if you accelerated the camera suddenly to follow the subject, and pressed the button at the same time, the camera might be attempting to correct for what it had suddenly detected as shake.

But even then, it would be impossible to know that that had happened, and in any case, the camera's SR wouldn't yet have stabilised - and as we know from Matt's experiments on that topic, unstabilised SR can be worse than no SR at all.

However, none of this comes even close to substantiating a claim that SR on a panning camera causes blur. My panning isn't bad, but I couldn't claim to be able to pan the camera steadily enough to be able to tell the difference between SR on and off with an already fast shutter speeed.

I say leave it on.
.
Pentax K-3, DA18-135, DA35 F2.4, DA17-70, DA55-300, FA28-200, A50 F1.7, A100 F4 Macro, A400 F5.6, Sigma 10-20 EXDC, 50-500 F4.5-6.3 APO DG OS Samsung flash SEF-54PZF(x2)
.

Anvh

Link Posted 16/08/2009 - 13:35
ChrisA wrote:
However, none of this comes even close to substantiating a claim that SR on a panning camera causes blur. My panning isn't bad, but I couldn't claim to be able to pan the camera steadily enough to be able to tell the difference between SR on and off with an already fast shutter speeed.

I say leave it on.

Same here.
I've tried on and off while panning an autosport race and I couldn't see a difference between the two but since we don't see a difference we might say that SR does not help with panning
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

Mike-P

Link Posted 16/08/2009 - 13:39
In that case I thank you all and will put the one "OFF" vote down to a jealous Nikon user who's camera doesn't have SR.



Only kidding Scott


Of course if the pictures all turn out to be crap I will be right back here blaming the lot of you. (Except Scott).
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Conky

Link Posted 16/08/2009 - 13:42
It's not a great shot, but this...




...was taken handheld with my old M200/4 and a 1/10th second shutter speed.
I have SR on almost all the time!

Al.
In use: K7 & M35/2.8, FA50/1.4, M200/4, M100/4 Macro, DA 16-45/4, DA* 50-135/2.8, DA-L 55-300/4-5.8
Non-Pentax: Sigma 24/2.8
Gathering dust: K10D, K1000, MX, ME Super

ChrisA

Link Posted 16/08/2009 - 14:08
Conky wrote:
It's not a great shot, but this...

[pic snipped]
...was taken handheld with my old M200/4 and a 1/10th second shutter speed.

Actually with a bit of levels adjustment and a little sharpening, I think you might be surprised how good that can look, if you'll forgive my taking the liberty.

It was hovering, presumably, so isn't quite germane to this topic, but handheld, for 1/10s at that focal length, that is excellent.
.
Pentax K-3, DA18-135, DA35 F2.4, DA17-70, DA55-300, FA28-200, A50 F1.7, A100 F4 Macro, A400 F5.6, Sigma 10-20 EXDC, 50-500 F4.5-6.3 APO DG OS Samsung flash SEF-54PZF(x2)
.

Cliff-P

Link Posted 16/08/2009 - 14:12
Well tbh mine is always on, the only exception is when I use a tripod, then the it gets turned off.
Cliff.




My Flickr link
Nikon D750, D7000 , Nikkor 80-400, 70-300 and 18-200 lenses

Conky

Link Posted 16/08/2009 - 14:41
ChrisA, consider yourself forgiven!
Nice work. My PP leaves a lot to be desired.
In use: K7 & M35/2.8, FA50/1.4, M200/4, M100/4 Macro, DA 16-45/4, DA* 50-135/2.8, DA-L 55-300/4-5.8
Non-Pentax: Sigma 24/2.8
Gathering dust: K10D, K1000, MX, ME Super

kerrowdown

Link Posted 16/08/2009 - 15:59
Another vote for on.
Kerrowdown... Aka Romantic Highlander.

Hold Infinity in the palm of your hand... William Blake.

"Mistress" Pentax-A 15mm F3.5, "Good Lady" Pentax-A 20mm F2.8, "Friendly Lady" Pentax-A 24mm F2.8, "Deviate Lady" Pentax 28mm F3.5 Shift, "Street Lady" Pentax-A 28mm F2.8, "Retro Lady" SMC Pentax-M 40mm F2.8, "Special Lady" Pentax-A 50mm F1.2, "Femme Fatale" Pentax-A 50mm F2.8 Macro, "Sweetheart" Pentax-A*85mm F1.4, "Lady Luck" Pentax-A*135mm F1.8, "Gorgeous Lady" Pentax-A*200mm F2.8 ED, "Duchess" Pentax-A*300mm F4.0, "HM The Queen" SMC Pentax 500mm F4.5
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