percepts
Established
What area is covered by the metering and is the meter area evenly weighted or does the central area of the metering area affect the reading more?
Metering area?
- Thread starter percepts
- Start date
- Latest activity Latest activity:
- Replies 12
- Views 3K
back alley
IMAGES
Specifications:
Camera type:
35mm rangefinder system camera with focal plane shutter and TTL light meter system
Film format: 24x36mm on 35 mm film
Lenses: Carl Zeiss T* ZM-mount lenses, can also use all other lens types with M bayonet
Viewfinder:
0.74x magnification. Bright range- and viewfinder with bright line frames
activated by used lens type. Displayed frames 28/85 mm. 35 mm, 50 mm. Separate
frame selector lever for manual frame selection independent of mounted lens.
Automatic parallax compensation. Standard setting at -1 dioptre
Rangefinder:
Large base rangefinder Coincident-image rangefinder in the center of the viewfinder
image. Measurement base 75mm (effective 55.9 mm)
Exposure meter: TTL centre-weighted metering at working aperture
Metering range: @ISO100 and f/2- EV 0 to EV 19 (f/2–4s, f/16–1/2000s)
Film speed range: Manually set between ISO 25–3200 with 1/3 incremental f-stop
Exposure modes: AE with aperture priority or manual. AE lock option.
Exposure Comp: +/- 2 f-stops in 1/3 steps set at shutter speed dial
LED Display:
Viewfinder display LED symbols for selected shutter speed along left side of frame.
Warnings for out of range shutter speeds and low battery
Shutter: Vertically moving electronically controlled metal type.
Shutter Range:
1/12 f-stop increments between 1/2000 sec and 8 sec in AE mode,
Full f-stops between 1/2000 sec and 1 sec in manual mode + B [Bulb]
Flash synch: Synchronisation at 1/125 s and longer shutter speeds
Film transport: Manual advance with quick lever. Rewinding with rewind lever
Camera body: One piece aluminium base structure. External metal covers. Tripod thread 1/4" in base plate
Batteries: Two 1.5V cells type LR44 or SR44
Dimensions: 138 x 78 x 32 mm / 5.4”x3.1”x1.3”
Weight:
500 g / 1 lb 2 oz.
Camera type:
35mm rangefinder system camera with focal plane shutter and TTL light meter system
Film format: 24x36mm on 35 mm film
Lenses: Carl Zeiss T* ZM-mount lenses, can also use all other lens types with M bayonet
Viewfinder:
0.74x magnification. Bright range- and viewfinder with bright line frames
activated by used lens type. Displayed frames 28/85 mm. 35 mm, 50 mm. Separate
frame selector lever for manual frame selection independent of mounted lens.
Automatic parallax compensation. Standard setting at -1 dioptre
Rangefinder:
Large base rangefinder Coincident-image rangefinder in the center of the viewfinder
image. Measurement base 75mm (effective 55.9 mm)
Exposure meter: TTL centre-weighted metering at working aperture
Metering range: @ISO100 and f/2- EV 0 to EV 19 (f/2–4s, f/16–1/2000s)
Film speed range: Manually set between ISO 25–3200 with 1/3 incremental f-stop
Exposure modes: AE with aperture priority or manual. AE lock option.
Exposure Comp: +/- 2 f-stops in 1/3 steps set at shutter speed dial
LED Display:
Viewfinder display LED symbols for selected shutter speed along left side of frame.
Warnings for out of range shutter speeds and low battery
Shutter: Vertically moving electronically controlled metal type.
Shutter Range:
1/12 f-stop increments between 1/2000 sec and 8 sec in AE mode,
Full f-stops between 1/2000 sec and 1 sec in manual mode + B [Bulb]
Flash synch: Synchronisation at 1/125 s and longer shutter speeds
Film transport: Manual advance with quick lever. Rewinding with rewind lever
Camera body: One piece aluminium base structure. External metal covers. Tripod thread 1/4" in base plate
Batteries: Two 1.5V cells type LR44 or SR44
Dimensions: 138 x 78 x 32 mm / 5.4”x3.1”x1.3”
Weight:
500 g / 1 lb 2 oz.
tedwin
Established
percepts
Established
Forgive my ignorance, but why is the metering offset to one side and not symetrical?
Is that pattern typical of the camera or just a one off test?
Is that pattern typical of the camera or just a one off test?
tedwin
Established
The sensor points at the grey painted shutter curtain from above at a slight angle. The pattern comes from Zeiss. This is the same as the R3A and probably others. It is why they suggest right hand up for verticals so that sky doesn't throw the meter. I personally find the right hand up for verticals uncomfortable and hard to keep steady, therefore, for me anyway, its good to know the metering pattern so that I don't have any unexpected suprises.
Ted.
Ted.
back alley
IMAGES
from zeiss -
"Due to the position of the metering cell the area of peak sensitivity is slightly off-axis and shifted to the lower left. This is intended to reduce the influence of bright sky both in horizontal and vertical (right hand up) frames."
"Due to the position of the metering cell the area of peak sensitivity is slightly off-axis and shifted to the lower left. This is intended to reduce the influence of bright sky both in horizontal and vertical (right hand up) frames."
percepts
Established
Thanks,
Is it the same with Leicas and other makes of rangefinder or do they all have their own metering patterns?
Is it the same with Leicas and other makes of rangefinder or do they all have their own metering patterns?
papasnap
Well-known
it varies by maker and model.
as I understand Bessas are similar, as they share much of the same cosina "DNA" (and components) but leicas are very different - from M6 onwards they are like a huge spot meter, and simply average a single large circular area in the middle of the frame, approx 2/3 the height of the film area.
the m6 & newer leica pattern is similar to "selective" metering mode in Canon DSLRs if I remember right. if interested download the M6 TTL manual, it shows the M6 onwards leica pattern.
as I understand Bessas are similar, as they share much of the same cosina "DNA" (and components) but leicas are very different - from M6 onwards they are like a huge spot meter, and simply average a single large circular area in the middle of the frame, approx 2/3 the height of the film area.
the m6 & newer leica pattern is similar to "selective" metering mode in Canon DSLRs if I remember right. if interested download the M6 TTL manual, it shows the M6 onwards leica pattern.
Last edited:
percepts
Established
Where can I find this download and links to the Zeiss meter pattern.
I've looked for the Leica download but can't find it. All the leica sites I've looked at start with the M7 which doesn't seem have a meter pattern shown.
I've also looked at all the zeiss downloads I can find but they all say center weighted metering including the ZI manual.
I've looked for the Leica download but can't find it. All the leica sites I've looked at start with the M7 which doesn't seem have a meter pattern shown.
I've also looked at all the zeiss downloads I can find but they all say center weighted metering including the ZI manual.
back alley
IMAGES
i believe most of this info was obtained directly from zeiss, after emailing them.
gilpen123
Gil
I suspect the meter pattern is 60%-40% with bias on the center and the Leica is somewhat similar to the Nikon F3 80%-20%.
percepts
Established
Thanks all,
Now if only one of these babies had a spot meter with a button ael, that would be perfect.
Now if only one of these babies had a spot meter with a button ael, that would be perfect.
kram
Well-known
I find the metering fine, and get on with it really well. I don't miss the spot metering which I have on my F6.
