It’s straightforward to overlook that for the 1960s photographer movies and processing, by no means thoughts printing, had been comparatively costly and in addition very sluggish. These had been the times of ready weeks for slide movies to be returned from the processor, or generally three weeks for a set of prints to be delivered.

Though there have been loads of photographers whose use of movie was slight – the rolls that contained Christmas, Easter, Summer season Holidays after which Christmas once more inside 36 photographs, for many who shot any amount the delivery of the half-frame digital camera was a possible boon. Thus, as a substitute of 36 24x36mm photographs on a roll, we had 72 18x24mm photographs in vertical format. The financial savings for the journey photographer, particularly, are self-evident. There have been many half-frame cameras, principally compacts, however from about 1963-1970 the top of the format needs to be the Pen F vary of interchangeable lens reflex cameras from Olympus.

With a variety of some 18 lenses, this was a full system. Now we have right here a reasonably well-used instance of one of many dearer customary lenses, the G.Zuiko 40mm f/1.4, which has a “35mm equal” discipline of view of 58mm on a half-frame SLR, or, as reviewed right here on the 20MP Panasonic Lumix G9 physique, an 80mm equal. Let’s have an in depth look and see how this miniature lens behaves in immediately’s digital world and if a small format movie lens has any benefit on an MFT format digital camera.

Olympus G.Zuiko Auto S 40mm f/1.Four Dealing with and Options

Olympus G Zuiko 40mm F1,4 Front Element View

The lens is small, weighing in at simply 165g, regardless of being constructed with primarily steel and glass. To apply it to the Lumix G9 an adapter is required, and the one offered signifies that the auto-stop down of the lens is now not practical. No matter is ready on the aperture ring is the place the diaphragm is ready. Which means though we’ve got to bodily open up the lens if we want to manually focus at wide-open aperture, after which shut it down once more, we are able to see the depth of discipline and the aperture precedence system of the digital camera works simply high quality. Publicity isn’t an issue and the intense f/1.Four aperture signifies that focusing manually could be very straightforward as nicely. The G9’s focusing aids additionally assist significantly.

Beginning on the entrance of the lens, the push on lens cap has the ornate gothic F of early Pen F cameras, indicating that this explicit lens most likely dates from 1963-1966. It’s conventionally coated, not multi-coated. There’s a customary filter thread of 43mm diameter. Wanting into the entrance factor, the 5 bladed diaphragm could be clearly seen.

Olympus G Zuiko 40mm F1,4 Vertical View

The aperture ring is on the entrance of the lens, in widespread with Olympus OM lenses for 35mm SLRs, and is click on stopped at full cease intervals from f/1.Four to f/16. This could usually be anticipated to be as clean as silk with an Olympus lens of this classic, however this explicit lens has seen some laborious work over time, so it could possibly’t be used to guage. Likewise the focusing ring, which is considerably notchy and might slip on this lens, however that’s only a signal of very laborious use over a really very long time. Search for a mint instance and once more will probably be clean and slick in operation.

We’re in fact speaking handbook focus, and the dimensions reveals that focusing is right down to 0.35m, or 1.15 ft. That is usefully shut.

Olympus G Zuiko 40mm F1,4 On Lumix G9

The G.Zuiko identify tells us instantly that it is a 7 factor lens, G being the seventh letter of the alphabet. Actually, optical building is 7 parts in 6 teams, just about what we’d anticipate from an f/1.Four customary lens of this period. As beforehand talked about, this lens has a “35mm equal” of 58mm on its authentic format. The standard customary lens for half-frame was 38mm, so that is barely longer than common. Within the 1960s photographers had been nicely conscious that completely different codecs had customary lenses of various focal lengths, and typically “35mm equivalents” weren’t used. It was merely accepted that half-frame can be round 38mm, 35mm format round 50mm and 6x6cm (2 ¼ sq.) round 80mm. Now, with so many potential sensor codecs, the idea of the “35mm equal” discipline of view is nicely established and on this context, it’s 80mm on MFT format, a brief telephoto near the basic portrait lens of 85mm.

Lastly, closest to the digital camera physique, we’ve got the depth of discipline scale, large sufficient to be helpful, and in addition displaying the IR focus mark. There’s a button for stopping down the lens to taking aperture, defunct with this adapter, and the lens launch catch. The adapter has no optical parts to have an effect on the standard and offers us the proper lens to flange distance to keep up infinity focus.

In use, it is a completely sensible and usable mixture, with no actual vices. It has the potential to be a very helpful optic on MFT format, so let’s now take a look at the efficiency.

Olympus G Zuiko Auto S 40mm F1 4 Pen F

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