aaton LTR lens meter
Posted 10 February 2013 - 05:58 PM
Posted 10 February 2013 - 06:54 PM
Posted 11 February 2013 - 05:21 AM
So, comparing readings obtained with the camera's exposure metering system and an incident or spot metering will not be straightforward when using the "test" facility on the camera unless you happen to be using a crystal speed.
All of this having been said, I have found the metering system on my LTR54 to be pretty accurate when used having regard to the points mentioned above.
I hope that this is helpful.
Posted 11 February 2013 - 06:25 PM
Thanks for the responses.
If I'm reading this accurately Mr. Lewis, The way the meter works requires film in the gate in order to get an accurate reading? If it's indeed measuring light bouncing off the film plane, then that might explain why I'm getting odd readings from the meter with only the pressure plate in the gate. This would be a rather unusual system compared to what I'm used to on some smaller format cameras.
I'll need to test again with film in the camera because as it is, it really wants me to open up wider than my Sekonic would have me believe.
Posted 11 February 2013 - 07:09 PM
Yes, the meter measures the light reflected from the film.
Posted 11 February 2013 - 07:28 PM
I have been generally pretty happy with the meter in my LTR and I have found it to be accurate and useful especially when moving quickly from situation to situation like indoors to outdoors. It is not a substitute for a spot meter though.
Posted 12 February 2013 - 05:00 AM
Phillip...what you are getting when you take a reading with no film loaded sounds right. You should find that when you take a reading with film loaded, it should be nearer to what you are getting when you take a reading with your Sekonic. That having been said, however, remember that the Aaton meter will be giving you a reading which is, in effect, an average reading reflecting the light bouncing back from the film which originates from the picture you are taking as seen through the camera lens. Your Sekonic will be giving you a reading which will either be a spot reading or an averaged reading, depending on how you use the meter. The reading provided by the camera and your Sekonic are therefore unlikely to be the same, but in my experience the camera meter is generally pretty close to what is appropriate, and I find I need to use my Sekonic only in particular circumstances when lighting conditions call for more precise readings.
Edited by Robert Lewis, 12 February 2013 - 05:03 AM.
Posted 16 February 2013 - 11:24 PM
Alrighty, I held a piece of scrap film against the gate and re-tested and now I feel better about the readings with the exception of the 400 asa setting. For some reason it doesn't work with that setting. Must be a bug.
I'll probably rate 500 asa at the 320 setting anyway, so it should be OK.
I have noticed that I tend to underexpose more often than over, so I'll try to go a bit thick on my neg as a general rule.