Light Meter Question
/forum/topic/1146301/0



mallen2
Registered: May 22, 2003
Total Posts: 671
Country: United States

I'm going to assume that the dumbest question is the one that is never asked so I'm going to ask to try to help myself understand, so bear with me.
Using a Minolta AutoMeter VF, If i have it set to AMBI, and the ISO is set to 200, and the shutter speed is 60 and i meter outside and i get a reading of 8.0 with a small 9 beside it and the "hash" mark above the reading is in the middle of 11, does that mean tha i am suppose to set my F-stop to f-11 or shoot at f-8.0?
Thanks for your reply.
Mike



onetrack
Registered: Aug 21, 2007
Total Posts: 161
Country: United States

I don't have that meter but I think it's F8.0 & 9/10. So, you're 1/10 of a stop away from F11.



mallen2
Registered: May 22, 2003
Total Posts: 671
Country: United States

So all things being considered, set it at F/11?



hugowolf
Registered: Nov 11, 2011
Total Posts: 557
Country: United States

mallen2 wrote:
So all things being considered, set it at F/11?

That would be the closest using 1/3 stops, or f/10 would be very slightly overexposing.

Most studio lights now have 1/10 stops intervals, so that is the way that most light meters now display; although many meters can be switched from tenths to thirds.

Brian A



mallen2
Registered: May 22, 2003
Total Posts: 671
Country: United States

Thanks,
I know you know what you are talking about, it's going to take a little while for the info to sink in and me to get comfortable with it.
thanks.........mike



henryp
Registered: Jun 03, 2003
Total Posts: 1780
Country: United States

Presuming you have the Minolta Auto Meter IV-F, the owner's manual is available here.

a reading of 8.0 with a small 9 beside it does mean f/8+9/10 or just a smidge shy of f/11. Presuming you're metering correctly, shooting at f/11 under the circumstances you describe should be fine.

Henry Posner
henryp@bhphoto.com
B&H Photo-Video



mallen2
Registered: May 22, 2003
Total Posts: 671
Country: United States

Hi,
I have the Auto Meter VF and the manual.
Not theIV-F



hugowolf
Registered: Nov 11, 2011
Total Posts: 557
Country: United States

mallen2 wrote:
Thanks,
I know you know what you are talking about, it's going to take a little while for the info to sink in and me to get comfortable with it.
thanks.........mike

Full stops are f/1, f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, etc. Most cameras display discrete intervals of one third stops. So between f/8 and f/11, you have f/9 (= f/8 + 1/3) and f/10 (= f/8 + 2/3). Some cameras allow you to change the display so that it only shows half stops, and there may be a few that allow you to only display whole stops. And although most lighting equipment can be adjusted in increments of 1/10 stop, I know of no camera that does that.

So your meter is showing f8 + 9/10, or just a tenth of a stop lower than f/11. F/11 is the closest exposure you can set on your camera to match a light meter reading of f/8 + 9/10.

Brian A



mallen2
Registered: May 22, 2003
Total Posts: 671
Country: United States

OK thanks...........mike



wilt
Registered: Sep 06, 2005
Total Posts: 1037
Country: United States

mallen2 wrote:
Hi,
I have the Auto Meter VF and the manual.
Not theIV-F



The IVf and the Vf are largely the same. The most significant difference (for those users with cameras that have fractional EV shutter speed values), is that the IVf only has 1/2EV shutter speeds, while the Vf has choice of 1/2EV or 1/3EV increments.