Original 645 Meter

Halco · 04-29-2010, 05:11 PM

Is the original 645's meter accurate to 1/3 of a stop or 1/2? Exposure compensation works in half stops, so I'm wondering if I set the iso for a 1/3 underexposure, if I'd be better off just going to half a stop?

Halco · 05-01-2010, 07:45 PM

Sorry, I was incorrect, the 645 exposure comp. works only in full stops. Specifically my question is if I set the iso to say 125 on a 100 speed film, will there be any difference in exposure? The meter provides LED display in full stops, but will it expose in any smaller increments?

**Digitalis** · 05-05-2010, 04:23 PM

yes, it should..but rember to reset the ISO. The pentax 645 has one of the most accurate metering systems in film camera history, the NII still is my 645 of choice...and now that the digital version is coming out the fun starts again....

04-29-2010, 05:11 PM	#1
Halco Senior Member Join Date: Aug 2009 Posts: 128	Original 645 Meter Is the original 645's meter accurate to 1/3 of a stop or 1/2? Exposure compensation works in half stops, so I'm wondering if I set the iso for a 1/3 underexposure, if I'd be better off just going to half a stop?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
For Sale - Sold: Pentax K 135mm f2.5 + Original Container+Original Packaging+Hood+more (No Taku	yyyzzz	Sold Items	15	05-08-2010 11:48 PM
DL Original Firmware ?	melmira	Pentax DSLR Discussion	2	12-13-2006 03:16 AM

05-01-2010, 07:45 PM	#2
Halco Senior Member Join Date: Aug 2009 Posts: 128 Original Poster	Sorry, I was incorrect, the 645 exposure comp. works only in full stops. Specifically my question is if I set the iso to say 125 on a 100 speed film, will there be any difference in exposure? The meter provides LED display in full stops, but will it expose in any smaller increments?

05-05-2010, 04:23 PM	#3
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	yes, it should..but rember to reset the ISO. The pentax 645 has one of the most accurate metering systems in film camera history, the NII still is my 645 of choice...and now that the digital version is coming out the fun starts again....