The Use Of A Laser Pointer To Focus In Dim Light
Photography and Text By Ed Jeavons © All rights reserved.

For those that have never heard of using a laser pointer with your camera before, it is a way that some people have found to help their camera focus on a subject when the ambient light is too dim for the camera to do it on its own. Those with focus assist lamps or a manual focus facility can often get around this problem, but many users who donít have these are stuck with blurry photos! Using a laser pointer with a patterned head, you can shine a bright image onto the subject and give the camera something to lock onto.
 
I was extremely happy with the results I got from my experiment, however I only did a short range test (about 2 meters) and I suspect that it wouldn't be so effective for medium or long range focusing. As an estimate, it's probably a good technique within the range of camera's built-in flash; for anything above that I think that the pattern generated by the laser would get too big and the cheap pointers wouldn't be powerful enough to make a nice bright image.
 
Below is a run-through of some of the pictures I took during the experiment. Bear in mind that apart from the light sources I have specified, the room I was in is pitch black and the camera's flash was not used.


Laser Photograph © Ed Jeavons

 
Laser Photograph © Ed Jeavons

Finally, here is a photo showing the type of laser pattern I used for the photo above. I tried three different patterns (the one below, a basic arrow shape, and an outline of a UFO) and all of them worked as well as each other. I didn't bother testing it using a basic dot because I knew that this wouldn't work.


Laser Photograph © Ed Jeavons

Just to clarify, the following procedure was followed on my Olympus C-730 to take photos using the laser as a focus assist.
 
Without the laser switched on, aim the camera at the subject and press the AEL button to lock the exposure. This is because the brightness of the laser may well affect any shutter speeds etc. that the camera should be using after it's been turned off.
 
Point the laser at the subject and press the camera's shutter button halfway so it can find and lock its focus.
 
Turn the laser off and press the shutter button all the way down to take the photo. For those not familiar with such laser pointers, I got this one from www.laserpointers.co.uk and it's their "Budget 12 Head Laser pointer" which only cost me a few pounds.
 
I hope this information will help you help focus your camera on a subject when the ambient light is too dim for the camera to do it on its own.   Ed





My Outdoor Eyes Photography Blog

Rock Harbor On Cape Cod In Black And White.

I loved this black and white photograph that Phil took of Rock Harbor early one morning last week. It looks like a “retro” photo of the area. You can see all the beach grass that washed up on the dock from the high tides. What do you think?

Fort Hill On Cape Cod Is Awesome Any Time Of The Year!

Fort Hill, part of the National Seashore, †is a wonderful place to go… any time of the year. You can hike or walk or sit on the bench and enjoy those spectacular views of Nauset Marsh. You can take a walk on the boardwalk across Red Maple Swamp down to Hemenway Landing and see the … Continue reading Fort Hill On Cape Cod Is Awesome Any Time Of The Year!

Update On The Hermit Thrush At Our Home On Cape Cod.

I posted a blog about this Hermit Thrush that I saw in our yard a couple of weeks ago. Well, it kept hanging out in our backyard and was trying desperately to get the mealworms from the Bluebird feeder. I tried raising the cover of the Bluebird feeder, but it was still too big to … Continue reading Update On The Hermit Thrush At Our Home On Cape Cod.


 
Photography Outdoor Adventure Outdoor Eyes Shop 7522 Radio Privacy Home

© 2000-2020 ImageNNetwork  All rights reserved.