Sigma's Bigma vs. 80-400 os - Your thoughts?

Started Apr 2, 2005 | Discussions thread
Andreas Frank
Forum MemberPosts: 69Gear list
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Re: Crop factor and camera shake
In reply to Mike Schriber, Apr 3, 2005

Mike Schriber wrote:

Camera shake is amplified according to the focal length of the
lens. It does not matter AT ALL what the crop factor is!

It DOES matter.

Before you even start... the density of the pixels and the size of
the sensor have NO effect on camera shake!

It DOES.

It's obvious with a little thinking about how camera shake appears on the image.

Shake the camera in a way that the light rays move about 1mm on the sensor and imagine what happens

  • on a APS-C Sensor

  • on a FF sensor

on a APS-C Sensor the image will be blurred more because this 1mm of "shaking latitude" will translate to a blur of about 1/16 of the image, while on the FF it will be about 1/24 of the whole image.

This has already been discussed in this forum.

You might want to read this...

http://www.luminous-landscape.com/tutorials/understanding-series/dslr-mag.shtml

There's nothing about camera shake!?

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Andreas
E0S 2OD/58OEX/S!gma18-50f2.8/S!gma70-300APOf4-5.6

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