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Well, it seems the seller has some problems in measuring the current consumption of the second Pentax spotmeter, so I doubt I will get that information.

In the meantime, I found something...

Sinar Norma 4x5 with lens-plate and rail clamp:3.67 kg
Sinar Norma 8x10 with rail clamp, lens-plate and two plywood screen protectors: 5.9 kg
Sinar head:850g

I just found at: http://www.largeformatphotography.info/forum/archive/index.php/t-42707.html
that Eric Woodbury estimates the battery drain of 10-20 mA for Pentax digital spotmeter. With 20 mA drain...

This is a good point, Jim,
If the zone VI calibration puts the "mid-grey", whatever that might be, on zone VI, it effectively increases the exposure by one stop, as compared to the meters centered...

Hi vinny,
Both meters seem to measure pretty much within the circle, I was scanninng the "hole on the shoe box" :). My Pentax actually has two concentric circles in the center... In the Pentax...

I have been using Minolta Spotmeter F for years. While the spotmeter worked great and consistently, I was eyeing the Pentax spotmeter due to its dial exposure calculator. With Minolta, I had to push...

Hi Matus,

I've been having Minolta spotmeter F for a few years now. The fact that it gives only the shutter priority exposure is also something I dislike most about it. I used to have a Gossen...

Thanks everybody, this sounds encouraging.

I have been checking little bits and pieces on my camera and was thinking to put small "leaf springs" under focusing rack, to prevent any movements....

After using Cambo SC for a year, mainly out in the bush, I decided to get something lighter and more convenient to carry around. After a lot of deliberation, I got a new Shen Hao TZ45-IIA (...