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By Robert Patts · Posted
Jump Desktop Connect is my app of choice for remote editing. -
I brought these images into Resolve and had a play, as well as some others I shot but haven't posted. It seems that the squeeze factor might be slightly more than 1.25x in some shots. I de-squeezed by just scaling around 0.75-0.8 vertically, and scaled the shots in post to match framing and got 1.388 on one and 1.276 on another. So even applying a large pinch of salt as it wasn't locked off, the squeeze factor seems to be variable. I wonder if this is distance related as perhaps the adapter moves the lens plane forward so that optically the position the camera sees from is moved forward a touch, as this would explain why the squeeze factor seemed to be more than advertised. It seems it's also a skill to get it rotated exactly vertically (although the adapter itself is easy to use in this regard). -
It certainly is, thanks for doing that. Much appreciated. -
I just remembered that the 17mm F1.4 has a strange filter thread size I don't have an adapter for, so I went with the Voigtlander 17.5mm instead, plus I also did the Voigtlander 42.5mm as well. I took stills on the GX85 so you can see the full sensor readout, and the SOOC images below are the actual images from the SD card and 7.9MB each so pixel pee to your hearts content if desired. I even remembered to set the taking lens to infinity and focus with the adapter! Voigtlander 17.5mm at F2.8, no adapter, SOOC: Voigtlander 17.5mm at F2.8, with Sirui 1.25x adapter, SOOC: Voigtlander 17.5mm at F2.8, with Sirui 1.25x adapter, de-squeezed (0.8x vertical size adjustment): Voigtlander 42.5mm at F2.8, no adapter, SOOC: Voigtlander 42.5mm at F2.8, with Sirui 1.25x adapter, SOOC: Voigtlander 42.5mm at F2.8, with Sirui 1.25x adapter, de-squeezed (0.8x vertical size adjustment): Hopefully that's useful. I took a shot of something round last week and pulled it into Resolve and rotated it 90 degrees and lined it up at 50% opacity to test the squeeze factor, which turned out to be just under 1.25x, but I suspect this might change depending on the focus distance. I don't know if it might also change with the taking lens, but I'm probably not going to do extensive testing on all my lenses. Also, for my purposes, it's meant to be a controlled degradation so nailing the squeeze factor for all focus distances isn't a high priority. Let me know if you want any other tests, some of these are pretty quick to do.
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Same as VW pricing a Golf the same as a Porsche and calling that a win. Err no, you have simply over-priced something massively that is not at the same level. This is not a pissing contest and I only used the Q3 as context, but IMO the Sony only beats the Leica in 3 areas which are; it is smaller and lighter, it has a higher res LCD and it’s AF will be better. Having said that, the Leica is over-priced IMO, but then you expect that with Leicas. It’s more a case of when you compare the RX1Riii against the A7CR and the A7RV it really shows how nuts the price is. Sony have a ton of small lenses and IMO the A7CR at half the price is a MUCH better option. The only thing about the A7CR that really bothered me wss they cheaped out on the LCD and tipped me towards the A7RV. And yes, the A7RV and anything with an interchangeable lens is a slightly different prospect, but still very realistic competitive options. I hope Lumix bring out something similar, - a rangefinderesque type body, either fixed lens or interchangeable because within L Mount we ‘only’ have manual focus M’s or e:shutter only FP/L’s and the massively expensive Q’s. S1Rii spec in an FP/Q3 body for around 3k? As long as they don’t do anything stupid like drop IBIS and preferably has the fully articulated LCD, done deal and dream camera for me.
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