Infinity Lock ?

[Rocket]

Nikon D300s, Whilst setting camera to manual, focus setting to infinity, is it possible to lock this mode ?.

 

[HoppyUK]

Manual on the camera locks exposure settings. Switching the lens to manual focus disables AF. Or a popular method of disabling AF from the shutter release is to reassign AF to the back-button. See custom functions in handbook.

 

[MWHCVT]

If you mean lock the focus at infinity of course it is just switch the lens to manual focus what is it that your planning on doing as this may not be the ideal for what you have planned

Edit: it's also worth remembering that some lens will focus past infinity so it's also important to check you have focussed correctly

 

[Rocket]

Thanks Matthew. Using a 17-55, Landscapes mainly but also fire works at a distance using a blackout card rather than firing.

Using the option of manual mode is ok but sometimes a slight movment can move the focus ring, i was just wondering if there is a way of locking the focus ring, perhaps via a switch/setting ?.

 

[HoppyUK]

Thanks Matthew. Using a 17-55, Landscapes mainly but also fire works at a distance using a blackout card rather than firing.

Using the option of manual mode is ok but sometimes a slight movment can move the focus ring, i was just wondering if there is a way of locking the focus ring, perhaps via a switch/setting ?.

No switch, but try masking tape

 

[MWHCVT]

Thanks Matthew. Using a 17-55, Landscapes mainly but also fire works at a distance using a blackout card rather than firing.

Using the option of manual mode is ok but sometimes a slight movment can move the focus ring, i was just wondering if there is a way of locking the focus ring, perhaps via a switch/setting ?.

Truth be told I would use the first firework to AF and then switch to manual focus job a good un depending on the type of display, eg organised or not you really will not need a blackout card for an organised display the intensity of the fireworks should be more than enough to get a great photo in a 10 second exposure...I always shoot bulb however so that I can vary my exposure to the intensity of the display

 

[Rocket]

Thanks Matthew, i might well go for your option, i have gained some reasonble shots in the past using a card with the exception of focus issues.

 

[MWHCVT]

Thanks Matthew, i might well go for your option, i have gained some reasonble shots in the past using a card with the exception of focus issues.

No problem I'm not sure if you've had the chance to read it but you in my signature is my full guide to fire work photography

 

[Rocket]

I did not notice it, off to have read. Thanks