John Twigt

I think it's very dangerous to make assumptions based on Youtube and Vimeo posted footage and screengrabs. Compression plays havoc on exactly the things people are trying to ascertain here (and on other forums),like banding, aliasing, moire. All these things should be examined with the original footage in an editsuite with calibrated HD-videomonitors, and not on (mostly uncalibrated) computerscreens scaled by mediaplayers with all kinds of strange conversions going on. Banding will appear when the gradients are (again) rendered after compression-decompression on services like vimeo and youtube. The visibility of moire is highly dependant on the scaling (through mediaplayers or monitor systems), so I find it hard to beleiev that people actually dare to make statements on moire and such based on youtube stills and such. Any way just my two cents here. BTW these are my latest shots with GH3 : http://vimeo.com/52019304

[quote name='MaxAperture Films' timestamp='1350999129' post='20162'] I thought moire was evident in shots with the Voigtlander footage above... Has the shooter acknowledge those shots were obtained with the 12-35 rather than the Nokton 25mm? I'd be very glad to stand corrected on this! Edit: John Twigt's Vimeo comments seem to say he did not notice any aliasing in his test shots... perhaps it was just the downscaling used for the side-by-side grading comparisons that gave that appearance in the corrugated metal backdrop. I'm glad to stand corrected on this. [/quote] The moire visible in the side to side shot is definitely not in the original unscaled footage, i checked this in my edit-suite just now and it is not there, all shots in my video were with the voigtlander 25mm though. I will post later tonight some shots without any adjustments on vimeo, they will focus on banding and moire.

In case anybody is interested, I've had the opportunity to play around with a pre-production model this weekend. Wrote a little report and thrown some shots together. Please be kind, this is not meant as a extensive scientific test, just a personal impression of the GH3 (and please note it's a v0.5 firmware pre-production model) http://www.workstation.nl/gh3eng.html http://vimeo.com/51928527

[quote author=garypayton link=topic=596.msg4436#msg4436 date=1334937963] [quote author=Teddy B. link=topic=596.msg4430#msg4430 date=1334932642] Agreed with those saying that not having HDMI is [i]not[/i] a bad thing - this camera is clearly aimed at the more serious hobbyist or emerging professional, so SDI is the right choice... [/quote] Absolutely not with you on this. You guys sometimes get contraddictory about this camera. This camera MUST be made for DSLR users who are supposed to already own lenses, monitors and accessories but really need a camera to take them to the next level without spending too much money. If this camera is not that, then for who's made? No HDMI out, thinking about all those users that owns a small monitor such as a Zacuto evf or a smallhd WANT to be able to use it. DSLRs are revolutionary because they give you immense power in a pocket, because you can take it in your hands, put a viewfinder or a small monitor and go, to a favela, into the jungle, in crazy positions, in difficult envyroments. If this camera is intended for a static set with SDI monitors, tripod, for us to play like we are the Orson Welles of the moment, then it really makes no sense. So you are sure with an adaptor there is no way to use HDMI EVF or small monitors????? [/quote] Not so important I think, if you need HDMI get a converter, be glad SDI is included, It's probably the first camera in this price range which has it, check these converters by atomos.[url=http://www.atomos.com/connect/]http://www.atomos.com/connect/[/url]

[quote]Quote from: BurnetRhoades on Today at 03:00:41 AM Quote from: John Twigt on April 19, 2012, 07:42:27 PM No HDMI for EVF This isn't really a negative.  HDMI has no business in the field.  It's a terrible hardware design.  Mini-HDMI even worse.  Never again. So true.  So very very true. [/quote] That's why you could use a SDI-HDMI converter , the cam has a 3GB SDI output, and maybe you want to use your Zacuto EVF with this camera, that has only HDMI in, so that's why I pointed this out. [quote] 24, 25, or 30p is not sufficient enough for filmmaking.  overcranking is something unique in telling a shot (from the story) or for sports enthusiasts. [/quote] Well. that's a matter of opinion, I think you can tell the most stories without any use for slomo. In my opinion al lot of filmmakers resort to slowmotion for extra 'dramatic' feel when the story lacks dramatic elements from itself. But to discard a camera because it has no 50p is a bit harsh I think. And don't forget this is the very first camera from this company! Think what they will do in maybe two or three years, they seems to listen to the independent filmers and when they continue to do so, we could see a lot of new features appear in the following versions (V1.x or V2.0) All in all I think its pretty amazing to create this with this pricetag.

There seems a lot of concern regarding the lens-mount vs the sensor size. I have an idea that BM might be thinking of the next model with this decision. I’m no expert whatsover on camera development, but I think from a standpoint of manufacturing it takes a lot of money and time to develop a camerabody and its (hardware)components, Software can be upgraded realtively simple but hardware needs to be largely build again from the bottom up. So I was thinking that maybe BM has the intention to fit V2 of this camera (which is in itself an excellent example of an innovation in an already crowded market) with a Full Frame or (more likely) a S35 sensor.  If they would have chosen to use a lens-flange distance for M3/4 or c-mount, they would be stuck with a smaller sensor, or not? I might be misunderstanding the whole flange-distance issue of course. Again , I’m no expert on building these thing, I just shoot with them. Anyway such a version 2 with a bigger sensor would mean that they will be a big competitor for the Alexa and Red , but even more for the chinese KineRawS35, especially if they keep the pricetag more or less the same (under $4k preferably). Other issues I read about can be tackled easily: No HDMI for EVF: use SDI-HDMI convertor, Short battery life: any rig should include professional 12V battery solution. At least it’s 12V and not 7,2 or something, this means that AB or V-mount can be used direclty without converters. Another thought: how would a 2/3” HD broadcast lens fare on this baby? I guess it would create some vignetting, but could that be cropped out from the raw file when cropping to 1920x1080 for delivery? I mean I’ve got a Fujinon HA 4.5 x 13 BERD, can somebody with math skills calculate what  FOV/FF equivalent in mm it would do on this sensor?  My calculation is 4.5 x 2 (extender on lens for enough coverage I suppose) x 3.9(or less?) cropfactor computes to : 35mm . Well that would satisfy me for a wideangle, and what happens to the aperture, can anybody expand on that? Will that effectively be x 3.9 as well? Anyway DOF is overrated  ;D