My new toy arrived.
It's a new made in Hong Kong lens, an Artralab Nonikkor MC 35mm f1.4 in Sony mount. It looks like a 1980's manual Nikon lens even down to the box. Mine is the 1980's look alike version with a thin rubberised focus ring. They do another older looking one with a metal scalloped focus ring (like a Voigtlander) but they didn't have one in Sony mount so I went for this one.
These two pictures were taken at f1.4 where it's a bit soft but it is for me useable and there's quite a bit of vignetting which doesn't really disappear until f5.6 but it is within the range of my raw software to fettle so that's not too bad and is probably in line with what you'd expect from a small 35mm f1.4. In fact I've seen worse.
I've had a quick look and apart from the softness and vignetting which improve when stopping down it seems quite good (but more on that later.) Infinity isn't at the end stop which is always a bit annoying, there is some blooming at f1.4 but not too much and CA doesn't look to bad either. Bokeh seems to be not too bad too and minimum focus distance is ok as it's where you'd expect it to be at a bit over 1ft or there abouts. So so far... better than I expected. I can't really look at flare as it's an overcast day but I'm expecting some.
Having run into oddities regarding depth of field, bokeh and light transmission when comparing the Pergear 35mm f1.4 to other lenses I had a look at this Artralab v my Voigtlander 35mm f1.2 and as with the Pergear there's something very amiss here. I'm assuming that the Voigtlander is nearer the mark as all my Voigtlanders are about in line with each other and also with my Sony 35mm f1.8. With this Artralab at f1.4 and f2 the shutter speed and ISO are pretty close to the Voigtlander but after that it all gets a bit funky.
Artralab and then / Voigtlander.
Aperture / Shutter speed / ISO for Artralab and then Voigtlander.
f1.4. - 1/60 - 125 / 1/80 - 100
f2 - 1/60 - 160 / 1/60 - 160
f2.8 - 1/60 - 200 / 1/60 - 320
f4 - 1/60 - 250 / 1/60 - 800
f5.6 - 1/60 - 400 / 1/60 - 1,600
f8 - 1/60 - 640 / 1/60 - 3,200
f16 - 1/60 - 3,200 / Not Measured.
Looking at the Artralab aperture at f8 it looks to be about the same size as the Voigtlander at something just a bit wider than f4 and that would fit in with the shutter speed and ISO relationship above.
So, as with the Pergear the markings on this lens are way out when looking at the shutter speed and ISO settings when compared to another lens which is almost certainly more on the mark and also if you set the aperture by looking at the physical aperture in the lens rather than using the lens markings the shutter speed and ISO results would be more believable.
As with the Pergear I wonder, as they've gone to the effort of designing and making this why didn't they make a better effort at making
things add up a bit more?
One good thing is that this lens seems to be very well centered with little to no difference at f1.4. This is IMO quite remarkable.
The build quality seems nice but one thing does annoy me, The aperture ring is near the camera and is partly knurled but smooth where the markings are and this makes using the aperture ring at f1.4 and f2 a bit awkward if you want to grip the knurled section. Ideally I'd have liked the knurled ring to be raised above the markings and continuous, rather than having a big gap in it.
When I can get out and when there's a sky rather than the usual grey out I'll have a look at flare and also field curvature.
I will use this lens but I think the fact that the markings are so far out v the shutter speed and ISO and the physical aperture size that you can see when looking into the lens could well put people off unless they just not a triggered ocd sufferer like me. I think its a shame that none of the reviews I've watched or read mentioned this rather obvious when you come to fiddle with the lens thing.
PS.
I forgot to mention that as this is a copy of a Nikon lens the focus and aperture are backwards compared to some other lenses.
ie. You turn the aperture ring clockwise to stop down and you turn the focus ring ani clockwise to focus closer.