Image Stabilizers

I personally don't think in-body IS is as effective as in-lens IS.

On what basis? Based on what systems are you comparing? The reality is that IS can only help reduce shake and will never be as good as using a tripod...
 
I love IS, especially the new Canon IS in the 18-135. On a trip to the O2 in London, I took a tac sharp image of the O2 area from the outside, in the dark and fog handheld at 1/13 and it looks as sharp as if it was taken at 1/2000!

In fact it was the only shot I got as they wouldnt let me take it into the arena, though when I got in all I could see were people flashing away with their point and shoots.... :thinking: Thats for another thread though, lol!
 
I love IS, especially the new Canon IS in the 18-135. On a trip to the O2 in London, I took a tac sharp image of the O2 area from the outside, in the dark and fog handheld at 1/13 and it looks as sharp as if it was taken at 1/2000!

In fact it was the only shot I got as they wouldnt let me take it into the arena, though when I got in all I could see were people flashing away with their point and shoots.... :thinking: Thats for another thread though, lol!

I don't think that folk realise that a) Flash has a range b) It can be turned off. ;)
 
On what basis? Based on what systems are you comparing? The reality is that IS can only help reduce shake and will never be as good as using a tripod...

On the basis that I've owned Nikon and some VR lenses, and I now shoot Sony with in-board IS,

Its a no-brainer a tripod is going to be better than either. The interesting question is which stabilisation technlogy is better.
 
I don't think that folk realise that a) Flash has a range b) It can be turned off. ;)

...they didnt like my DSLR because it "had a big lens"! Thats what they said when I took it up with their management after they confiscated my camera and locked it up!
 
Lens IS: Also, because light passing through the lens is shifted from its true optical path when it projects out the rear element onto the sensor, poor 'Bokeh' can result. This is the subjective quality, but highly valued by professional photographers, of the out-of-focus area around an image. In-body image stabilization does not have this problem because the light is not altered, only the sensor's position. I think this is another tricky one to ascertain, but I have seen examples where it can cause weird diagonal striping to the bokeh. This was taken with a 50D and a 300 f4 IS lens with the 1.4x TC: http://www.flickr.com/photos/sarahlefley/4368427093/

Yes, you *can* get weird bokeh effects from IS/VR but not the one you've shown there - thats caused by a filter.

There was a thread on here recently about that diagonal striping with the 300 f4 IS, the 400 5.6 and some other Canon lens recently and I asked the question about IS and it was off in the test shots.

Here's a good link showing you what can happen:

http://www.naturfotograf.com/AFS70-200VR_rev04.html
 
Yes Andy, Your quite correct of course,18x is the range not the magnification DOOOHHH!!
 
Yes, you *can* get weird bokeh effects from IS/VR but not the one you've shown there - thats caused by a filter.

There was a thread on here recently about that diagonal striping with the 300 f4 IS, the 400 5.6 and some other Canon lens recently and I asked the question about IS and it was off in the test shots.

Here's a good link showing you what can happen:

http://www.naturfotograf.com/AFS70-200VR_rev04.html

The poor bokeh was caused by the filter. The striping was an entirely different matter. In the further test shots Sarah performed, you can see the bokeh get better without the filter. IS wasn't the issue here, but there was no diagonal striping either. The striping in the earlier shots would probably have been far less pronounced, but would probably still be there. IS was used in the earlier shots (of the dunnock and the deer). The change in the path of light caused by in-lens IS at the sensor increases as you are further away from the plane of focus. If you already have very busy bokeh (e.g. caused by a bad filter), this will look even worse. Sensor-shift IS moves relatively to all of the paths of light by the same amount - so you don't see this magnification of poor bokeh or dispruption to good bokeh. (I'm not sure how clearly that reads...)

The link you've sent is a useful one too.


Andy
 
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