View Single Post
  #5  
Old 26-05-2008
mobile chicane's Avatar
mobile chicane mobile chicane is offline
Senior Member
 
Join Date: Nov 2006
Posts: 431
Default

Quote:
Originally Posted by jimmy View Post
Good stuff, glad I stayed in playing with cars
How were you using the camera? all the photos I looked at were 1/800th of a second shutter speed but the aperture was changing, so I assume you were using shutter priority? No matter what you do, you can't leave things the same or trust the camera when you get on a track like CML. The black Astro turf and dark trees in the background fool the exposure and send it all over the place.
If you were using shutter priority and the lens needed more light (you say they are too dark) then theres not really anywhere for the camera to go because of the slow aperture on the lens. That's why I use Aperture priority - you'll always get a shot because the camera can always slow the shutter some more, and 1/800 is pretty quick. But like I said before, a track like CML I found full manual to be the best way to stop the dark areas messing it up.

I'll try slowing it down below 1/800 next time I did leave it on apature priority although I never set it above F8 as the pics came out realy dark.

I'm using a nikon D40 and it has 3 difrent metering settings in the on screen menu each with an example pic they are matrix, centre wheighted and spot all the shots above were taken with matrix although I think centre weighted or spot may have been a better choice for a light 1/10th buggy on dark astro or in the air with a background of dark trees.

I have iso settings of 200, 400, 800, 1600 and H1, this setting only self regulates in the auto or pre programed modes sutch as sport portrait etc.

Apatrure settings of F4 to F22`

And shutter speed of 1/4000 th second to 30 seconds or longer if I use the remote.

I take it the iso settings are seperate to the shutter speed and apature opening but I'm not sure how they relate to picture clarity / brightness.

I tried the manual focus trick in jimmys rc car shooting guide but with a smallF number I think you have to be spot on as the deoth of field in focus is very shallow.

I also left the lends hood off as I thought fitting it would reduce light to the lends and make the pics worse was this corect or a schoolboy error
Reply With Quote