Hardcore studies of photography technology

 

We love photographing. And we love researching our photographic tools. And sharing our findings.

 

 

days until Photokina 2010

 

Shutter induced blur with the Pentax K-7 camera – White Paper –

This paper studies the impact of the shutter on image sharpness. The operation of a mechanical shutter is known to have a negative impact on image sharpness. This is old wisdom. However, the exact magnitude of the effect and the question if it is significant in day to day usage is not very well understood. Therefore, we decided to study this effect in detail for the Pentax K-7 digital SLR camera. Of course, we combine this with a study of the (lack of) impact of mirror slap and hand-held operation. We verify the existance of extraneous blur and identify its exact nature and cause. It helps to understand the mechanism leading to this kind of blur and to effectively work around them.

(2010, July 21) more...

 

Understanding Image Sharpness – White Paper –

This White Paper is one in a series of articles discussing various aspects in obtaining sharp photographs such as obtaining sharp focus, avoiding shake and motion blur, possible lens resolution etc. This paper tries to provide a common basis for a quantitative discussion of these aspects.

(2010, June 18) more...

 

 

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