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Alpicat

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  1. It would be amazing if Metabones did a speedbooster to compete with the Kipon ones, but ideally made it 0.64x or 0.58x to make better use of the 645 imaging circle. The current price of the SL to Mamiya 645 version isn't that bad in Amazon UK, compared to the prices on ebay at least (where you have to order from China). Here it is: https://amzn.to/3dOKTUK The test I did with the Kipon on the S1H is in the thread below. I mentioned the speedbooster was a bit soft with the Mamiya 80mm wide open at f1.9, but have since discovered that it's actually the lens that is soft, not the speedbooster:
  2. Yes they have medium format speedboosters options for nearly every full frame mirrorless camera mount - also Canon RF, Leica M and Sony E. They're not always easy to find online though. @zerocool22 the build quality of their speedboosters is completely fine and very solid - there are no moving parts on those. The only thing on the Mamiya 645 version is that the lens locking pin has little resistance and the lens could potentially fall out fairly easily if you're not careful.
  3. I have the Mamiya 645 Kipon focal reducer for the S1H and the 80mm at f1.9 it's a bit soft and the image seems to glow a bit. I think that might possibly be an issue with the speedbooster not being able to handle fast apertures, rather than the lens. I heard someone else who had the same issue with this combination. You can very briefly see this in the video I shot below, at the 1:20 mins mark, when I open up the aperture to max for a second. It's more noticeable in bright conditions than in low light. f2.8 it's fine though - even around f2.4 it's ok. Can't find the Pentax 67 one, but with the Mamiya and Contax ones, linked below, you can add an additional adapter to mount Pentax 67 lenses (and also have the option to use 645 lenses) so it's probably a more versatile option? GFX to Mamiya 645: https://www.ebay.co.uk/itm/Kipon-Adapter-Focal-Reducer-Speedbooster-for-Mamiya-645-Lens-to-Fuji-GFX-Camera-/122599541498 GFX to Contax 645: https://www.ebay.co.uk/itm/Kipon-Adapter-Focal-Reducer-Speedbooster-for-Contax-645-Lens-to-Fuji-GFX-Camera/333350155153 You may get vignetting on some lenses if using this with the GFX due to speedbooster limitations, however I may be wrong. Alternatively Metabones make a speedbooster for the GFX which definitely won't vignette, but it only takes Hasselblad lenses: https://www.metabones.com/products/details/MB_SPHV-FG-BM1
  4. Here's a test I did with the S1H using Mamiya 645 medium format lenses on a Kipon Baveyes 0.7x speedbooster. Shot in 6K H.265 using the whole sensor area which works really nicely with the medium format lenses as it maximises their field of view. The resulting equivalent speedboosted frame size is approximately 51mm x 34mm - slightly larger than what you'd get with 70mm film (definitely taller due to the 3:2 aspect ratio). It's still quite a bit smaller than IMAX though - equivalent to around half the surface area. I mostly used a Mamiya 645 Sekor C 80mm f1.9 lens and also a 35mm f3.5. I had an SLR Magic variable ND filter on at all times as it was a very sunny day. This is shot in V-Log and edited in Adobe Premiere which is able to handle the H.265 files pretty well. Would have preferred using Davinci Resolve Studio but it struggles a lot with these files even though I have a fairly good computer (AMD 3950X with an RTX2080 graphics card). I have updated the camera to firmware version 2.0 and set the noise reduction to -1. One of the shots was done at 180fps / 1080p. The IBIS works pretty well, but can get quite jittery - it's difficult to keep the camera stable handheld when pulling focus on the Mamiya lenses as they have quite a long focus throw. I composed the music using a virtual version of the Mellotron instrument.
  5. He's making a documentary about himself: https://afroditefilms.com/chroniclesofketchrossi he kind of reminds me of Bhagavan Antle from Tiger King - benevolent and almost like a god. He does seem like quite a legend - he said he wants to produce, direct, dp and act in his coronavirus film, as well as cook for cast and crew every day. Not even Tommy Wiseau was capable of taking on quite that many roles on his film. I'm sure he's a very nice person (at least from what I'd read in the past), but I'm just not sure about some of his ideas.
  6. With the amount of subscribers he has, it's possible some companies have provided him with kit to review - at least in the case of Insta360, Kinefiniti and DJI maybe? As for the Arris and Canons, if he's a DOP or there's a DOP he works with who has a good relationship with a rental house - sometimes the rental house is happy to provide a good deal or return a favour if the DOP has brought them a lot of business previously. Who knows if he does something like this. Although he does say he bought an old Alexa so he must have some money
  7. I picked up my S1H from the shop in the UK on Tuesday! I had ordered the S1 originally in late August, but the day after I heard that the S1H would be able to output Prores Raw and I changed the order straight away. I only have a set of Mamiya Sekor C 645 lenses and the Kipon Baveyes L-mount medium format speedbooster at the moment. These work really well with the IBIS, the stabilisation definitely isn't perfect at all but the movement feels fairly natural. I decided to shoot an unboxing video, the first time I've tried this! Also shot a little bit of footage but it was already nighttime so couldn't do much (jump to 02:50 for the test footage). That was shot in UHD 10-bit 422 All-I 25 fps, with the Mamiya 80mm f1.9 lens, at ISO 10,000. It's soft at f1.9 but stopping down improves things. Not sure if the speedbooster reduces sharpness too. Not sure I'll have time to shoot more any time soon as this arrived just when I'm very busy, but look forward to shooting more! It's a heavy camera and does get a bit tiring if you need to hold it a long time, but it's not that bad!
  8. Hi, the video is from February 2018 so I used the build that was available at that particular time. The video description mentions that I used 12 bit lossless recording, so it would have been one of the experimental builds from the main website (not from the forum) - this was a few months before Danne started doing the SD overclock hack for this camera. Given that the resolution was 1392x1028 I'm guessing I was using 'movie crop mode' which gives you a full realtime view of what's being shot, the preview is zoomed in 3x in relation to the whole sensor in that particular mode (rather than 5x). The Schneider lens was mounted to the camera with a C-mount to EF-M mount adapter. That's good to know! I only ever used the 5D mkII without magic lantern (back in 2011) - didn't realise there was less moire and aliasing than when shooting with the regular video mode.
  9. @Emanuel yes the 5D mkIII is an exception because it uses pixel binning, I meant most of the other Canon dslrs that shoot 1080p with line skipping. From my experience they're worse than the bmpcc.
  10. @webrunner5 thanks! yes this camera now basically has the same capabilities as other Canon dslrs with magic lantern, only it's cheaper and very light. @Emanuel I guess it does look a bit space-age with all that sellotape floating around in front of the camera! @thebrothersthre3 mosaic engineering make these filters for Blackmagic cameras too, it's worth getting one that was specifically designed for the camera you have as then you should get the best results. However I don't think Blackmagic cameras suffer from that much aliasing compared to most Canon cameras?
  11. I managed to find one of these filters for a Canon 50D on ebay for cheap (I bought the Mosaic Engineering VAF-50D Optical Anti-Aliasing Filter), and got round to making a video with it yesterday in mv1080p rewire mode (full sensor 3x3 line skipping). It works, doesn't get rid of the aliasing 100%, it's still there in extreme situations, but the reduction is substantial. I stuck the filter into an EF-M to EF adapter with sellotape, it's impossible to fit it directly in front of the sensor as it's too large - I actually tried to fit it by cutting the filter's frame off, but the glass started cracking straight away so stopped that attempt immediately (you can see a crack in the photo on the top right corner of the fulter, but it doesn't affect the image luckily).
  12. That's true and is a big consideration if you're thinking about getting this camera. In general the eos m has never been very usable for video and things haven't really changed that much. If you want a camera that's easy to use - i.e. with proper framing - you'd be better off with a bmpcc or something else. With the eos m you're basically shooting partially blind in some of the modes. I'm sure it's already been mentioned, but in all the raw modes on the eos m you have a choice between shooting with a real time preview that is cropped, sometimes not correctly centred and in some cases stretched vertically by ~ 2x or more extreme in the case of 1x3 mode (the preview looks like uncorrected anamorphic with the bottom half of the frame not displayed)... or you can shoot with correct framing preview but then the display is very pixelated and plays at slow frame rate. It's hard to shoot anything in this mode, unless it's a static shot. I only ever use this mode briefly to check framing before I start shooting. The exception to all the above is movie crop mode which we'd spoken about in the previous eosm thread - that mode provides a fully correct preview, but the crop is 4.66x (approx 1/2 inch sensor size) and max res is 1800x1024. Here's an example video using that mode: https://www.eoshd.com/comments/topic/26577-is-the-eos-m-the-digital-super-8-camera/?page=4&tab=comments#comment-227334
  13. That must be it. I guess the best way to avoid it is lowering the resolution slightly.
  14. That makes sense, thanks for letting me know! I've tried the 2.35:1 ratio preset recording at 1504x1920 but I'm getting quite a few pink frames unfortunately.
  15. With the latest build Danne posted the max resolution that I can set is 1184x2000 (i.e. 3552x2000) in 1x3 mode - I don't know why, maybe beyond that it becomes too unstable and he set that limit, or maybe I'm doing something wrong - but for me it's a nice resolution, it comes out exactly as 16:9 aspect ratio.
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