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mirror lock?


brrttpaul 9 243 United Kingdom
20 Jul 2012 6:56PM
Hi everyone, I have recently purchased a spotting scope and even though im using remote release there is still some camera shake, I read somewhere about locking the mirror up ? I can see it on the camera menu (d3100) and tried it just to see how it works but im still unsure if this is the right thing or was it something else
bainsybike 11 337 United Kingdom
20 Jul 2012 7:21PM
If it works, it's probably the right thing! Wink If it doesn't, maybe your tripod isn't man enough for the job?
brrttpaul 9 243 United Kingdom
20 Jul 2012 7:28PM
it wernt the tripod i knew soon as the shutter went I thought bugger, i will experiment a little
EddieAC Plus
16 2.9k 2 United Kingdom
20 Jul 2012 7:39PM
I think this mirror lock function may be the one for cleaning the sensor.

If it doesn't work then try turning on live view before taking the shot. This will flip up the mirror then you can take your exposure.
GarethRobinson 14 1.0k 2 United Kingdom
20 Jul 2012 7:47PM
fill a bag with sand or similar and drape it over the scope to help kill vibrations.
brrttpaul 9 243 United Kingdom
20 Jul 2012 8:01PM
Didnt think of that hopefully some clear skies tonight to give it a go
Sooty_1 10 1.5k 221 United Kingdom
20 Jul 2012 9:03PM
Use the self-timer. When you press the shutter, the mirror moves, then the countdown starts before the shutter trips. 10 secs should be enough to let vibrations settle.

Nick
gaelldew 13 377 United Kingdom
22 Jul 2012 11:45AM
Look through your menus there will be a 2 second delay item, I think its D10 on my D90.
Sooty_1 10 1.5k 221 United Kingdom
22 Jul 2012 12:07PM
2 secs may not be enough to damp all the vibrations you cause by touching the set up.

Nick
chris.maddock 19 3.7k United Kingdom
22 Jul 2012 4:05PM

Quote:Didnt think of that hopefully some clear skies tonight to give it a go


What length exposures are you using? The moon and stars move surprisingly quickly, so are you sure your problem is shake as opposed to subject movement?
brrttpaul 9 243 United Kingdom
22 Jul 2012 4:56PM
Hi guys thx for the help, I didnt go over 20secs. it was def when the shutter clicked but think ive sorted it now (the sandbag over the scope improved it a lot) cheers
Ian-Jones 17 133 2 United Kingdom
24 Jul 2012 9:53PM
Also, if you can, mount the pod on soft ground or springy grass. Just out of curiosity, back when I used film, I exposed a shot for 17+ minutes next to a large road bridge crossing a river. The image was pin sharp despite the heavy traffic and the wind... and the pod was on a grass bank.

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