A couple of days ago someone had asked about the detailed test results from
Pop Photo on the OM-4T. I don't have the Pop Photo tests, but here are the
results from the 1989 Modern Photography buyer's Guide. I thought they might
be of interest.
Paul Schings
=============================================
OM-2S:
Apparent Viewing 29in
Distance
Apparent Distance 39in
of Shutter Speed
Scale
View area compared Vert: 96%
to film area Hori: 94%
Parallax error Vert: 0.05mm up
compared to film Hori: 0.10mm left
Focusing Accuracy No discrepancy
at maximum aperture
Image Magnification 0.89x
Picture Size: 24.2mm x 36.1mm
Shutter Curtain 0.02 stop
travel eveness
Insulation from Infinity
Synch
Synch contact PC: 74%
efficiency Shoe: 72%
Sync delay time OK
Shuter curtain None
bounce
Self Timer delay 12sec
Camera Size: 5-1/2x3-5/16x1-3/16
Camera weight: 1lb 3-5/16 oz
=============================================
OM-3:
Apparent Viewing 39in
Distance
Apparent Distance 39in
of Shutter Speed
Scale
View area compared Vert: 96%
to film area Hori: 97%
Parallax error Vert: 0.20mm down
compared to film Hori: 0.10mm left
Focusing Accuracy No discrepancy
at maximum aperture
Image Magnification 0.87x
Picture Size: 24.2mm x 36.1mm
Shutter Curtain 0.02 stop
travel eveness
Insulation from Infinity
Synch
Synch contact PC: 80%
efficiency Shoe: 72%
Sync delay time OK
Shuter curtain None
bounce
Camera Size: 5-7/16x3-1/2x2-1/8
Camera weight: 1lb 3-1/8 oz
============================================
OM-4T:
Apparent Viewing Adjustable between 39in
Distance and 13in
Apparent Distance Same as above
of Shutter Speed
Scale
View area compared Vert: 97%
to film area Hori: 93%
Parallax error Vert: 0.20mm up
compared to film Hori: 0.10mm left
Focusing Accuracy No discrepancy
at maximum aperture
Image Magnification 0.88x
Picture Size: 24.0mm x 36.2mm
Shutter Curtain 0.10 stop
travel eveness
Insulation from Infinity
Synch
Synch contact PC: 70%
efficiency Shoe: 62%
Sync delay time OK
Shuter curtain None
bounce
Self Timer delay 12sec
Camera Noise: 65dB(a)
Camera Size: 5-7/16x3-7/16x2-3/16
Camera weight: 1lb 2-1/4 oz
============================================
OM-77AF:
Apparent Viewing 32in
Distance
Apparent Distance 39in
of Shutter Speed
Scale
Apparent Distance 39in
of Aperture Scale
View area compared Vert: 93%
to film area Hori: 92%
Parallax error Vert: 0.20mm up
compared to film Hori: 0.10mm right
Focusing Accuracy No discrepancy
at maximum aperture
Image Magnification 0.80x
Picture Size: 23.7mm x 36.5mm
Shutter Curtain 0.10 stop
travel eveness
Insulation from Infinity
Synch
Synch contact Shoe: 70%
efficiency
Sync delay time OK
Shuter curtain None
bounce
Self Timer delay 12sec
Camer Noise: 65dB(a)
Camera Size: 6-3/8x3-9/16x2-5/8
Camera weight: 1lb 8-1/4 oz
==============================================
OM-88:
Apparent Viewing 39in
Distance
Apparent Distance 39in
of LED Display
Scale
View area compared Vert: 93%
to film area Hori: 93%
Parallax error Vert: 0.20mm up
compared to film Hori: 0.40mm left
Focusing Accuracy No discrepancy
at maximum aperture
Image Magnification 0.81x
Picture Size: 23.9mm x 36.1mm
Shutter Curtain -0.20 stop
travel eveness
Insulation from Infinity
Synch
Synch contact 72%
efficiency
Sync delay time OK
Shuter curtain None
bounce
Self Timer delay 12sec
Camera Noise: 75 dB(a)
Camera Size: 5-3/4x3-9/16x2-3/8
Camera weight: 1lb 5-3/8 oz
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