Camera Hacker


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creating mirror lockup in non MLU cameras

MLU or exposure delay made is coveted by many who want to make super sharp tripod photos.

In the Nikon range, you have to go up to the d90 at least to get it.

It's a shame. So many good D70s d60 d40 out there for cheap that are capable of making great photos even for enlarging, except for when taking shots in the shutter speed range which causes mirror vibration.

I understand that mechanically those cameras, shutter and mirror are one intrinsically connected mechanism, so it is not possible to simply change the firmware like in Canons to delay the shutter.

But the new "quit mode" on the d5000 which slows down the mirror ( and also the shutter To make it more quite got me thinking.

Would there be a way to electronically slow down the entire mirror and shutter mechanisms in these cameras? perhaps with a resistor and an on/off switch soldered in somewhere?

By simply slowing down the mirror and shutter mechanism by 400% that would do two things, 1: the mirror would be slamming up against the camera body with way less force. 2: Perhaps it would create a little bit of a mechanical delay that is not there when the mirror/shutter is functioning at full speed.

How do these mechanisms work? Are they released with built up tension from a spring? ( in which case electronics wont make a difference ), or is the entire mechanism controlled by a motor(s) for the duration of the event?

If that is the case it seems like a resistor or potentiometer might be able to control the speed and duration of the event, which might create significantly less vibration when when slowed down. Perhaps even slowed down so the whole process takes 2 seconds.

A hack like this would create a MLU workaround for all of those used nikon d40's d60's, d70s out there that will continue to go down in price for the next couple years.

But at those megapixel ratings, you need to get EXTRA sharp photos if you want to blow images up and have them compete with larger megapixel cameras.

Canon has been hacked to provide this, but canon digital camera lenses are few and far between and much more expensive. There is so much more good nikon glass available that going with a Nikon system is better when putting together a setup on a budget.

Of course there are the nikon adapter lens rings, but those suck for a variety of reasons.

Any thoughts on slowing down the mirror/sensor mechanisms?

Sat, 23 Oct 2010 18:04:53 +0000

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