Meyer Orestor / Pentacon 2.8/135 User manual

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The definitive equipment listing for Prakticas on the internet

Lenses -> M42 -> Meyer Orestor / Pentacon 2.8/135

Construction - 5 elements, 4 groups
‘Angular field - 18°
Minimum focusing distance - 1.5m (pre-set), 1.7 (auto)
Diaphragm action - Pre-set / Fully automatic
Minimum aperture - f/32 (pre-set), f/22 (auto)
Filter size - 55mm screw-in type
Push-on diameter - 57 (pre-set) / 60mm (auto)

Weight - 515g (pre-set), 470g (auto)

Barrel length - 94mm (pre-set), 89mm (auto)
Special features - detachable lens hood, interchangeable adapter (pre-set),

extendable lens hood (auto)

Description - A larger version of the 2.8/100, this lens was first made as

Lens schema:

the Meyer Orestor with bright fluting finish and pre-set
diaphragm, and a detachable mount which can be
exchanged for those to make it fit other 35mm SLR
cameras. Its production continued with its name changed
to Pentacon, where it acquired all black styling, but
retained normal coating. The automatic version started in
the black fluting period, where both auto and electric
versions were made, and acquired multi-coating one
generation further down the line. It was also available in B-
mount as the Pentacon Prakticar 2.8/135.

Pictures taken using this lens:
Weiting for daddy by Christian Maldonado Fisker

Additional data:
Camera: Praktica LTL 3
Shot on: Agfapan 400 ASA at 1/125 sec with f5.6

Runner by Christian Maldonado Fisker

Additional data:
Camera: Praktica LTL 3
Shot on: Agfapan 100 at 125 sec with f8 or f11

It's amazing what the contrast on the 135 mm pentacon
really is, as well as details and the right blur, it can't get
better than this. I developed the negatives in teunal for
6,30 min 21 degrees,

Postman reads the address on a letter by Christian

Maldonado Fisker

Additional data:

Camera: Praktica LTL 3

Shot on: Kodak 200 ASA at 125 sec and f4 or 5,6 (not
accurate)

One day while i was testing the Pentacon lenses i suddenly
discovered this postman dressed in red uniform and
reading the address carefully. Although the sun was very
shiny and strong, the lens still handled the difficult red
colour quite fair, I simply like the Pentagon 135 mm much
and I will use it more often in the future. For the money
spent it’s beyond imagination.

Muddy Boots by Christian Maldonado Fisker

‘Additional data:
Camera: Praktica LTL 3
Shot on: Kodak 200 ASA at 125 sec with f5,6.