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MattThomasFilm

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Posts posted by MattThomasFilm

  1. Here's the response I received from BMD support

     

    "The camera has just been announced therefore we do not have the full in-depth spec, however to the best of my knowledge the crop factor is 1.3 in relation to a MFT lens and a 2.6 in relation to a 35mm lens."

     

    so it's a little better than S16 crop but defintely super wide angles will be a problem if you don't want to pay a lot of money.

     

    Looking at this chart - http://en.wikipedia.org/wiki/Image_sensor_format (bottom of the page). It's more likely to be 3x crop in relation to full frame.

     

    It's not much of an issue for me as I've never owned a Full Frame camera, the Samyang 14mm on the BMPCC will be roughly equiv to a 25mm on a 550D (if I worked it out correctly) which I could live with as my widest.

  2. Looking at the sensor size of the BMPCC -  12.48mm x 7.02mm, Compared to the Canon 5D - 36 × 24 mm, I think it did mean that's equivelent to what it would be on MFTs not Full Frame.

     

    Coming from a 550D like myself which is as a sensor of 22.3 × 14.9, makes it sound a bit more managable when looking for lens as a 14mm would be roughly equiv to a 25mm on the 550D if I've work it out correctly, which I could live with for my wide.

     

    But your right, That video is quite confusing, maybe the BlackMagic reps have mixed up information with the 4K model, because the pocket's sensor is smaller then the original Cinema Camera (15.81mm x 8.88mm) so how can it have it improved crop factor? The 4K will have improved crop factor as it's sensor is (21.12mm x 11.88mm) so maybe the rep mixed up the information between the two newly announced cameras in that video?

     

    Don't get me wrong, I'd love it to be just a 1.3/4 crop but I think it's just the reps information not being very clear.

  3. Sorry everyone I know this is a bit off topic but did anyone see this video: http://www.youtube.com/watch?feature=player_embedded&v=gg0VZWRy1NI

     

    apparently the S16 sensor on the BMPCC has a crop factor of 1.3-1.4 not 3 like I thought...I bring this up here because for me the only reason I would consider buying C-mount lenses(other than the price of course) is the fact that the widest native MFT lense that doesn't have severe barel distortion is what I thought would have the equivalent FOV of a 21mm lens on 35mm sensors(that's the Panasonic Lumix 7-14)...anyone has a clue what's going on?

     

    I belive that's a crop of 1.3 - 1.4 of the Micro4/3rds so it's roughly a crop factor of 3 of full frame. This is what I thought from what I've read and seen online.

     

    Struggling to find any decent manual aperture ringed lenses between 8 and 24, (I have a Samyang 14mm), I would have liked a wide angle zoom like the Tokina 11 - 16 or the Sigma 8 - 16 but with them not having manual aperture rings you can't use them effectively with the BMPCC. Getting a good range of lenses for the BMPCC may be difficult, especially on a budget.

  4. sharp if you get the right ones

     

    I use the Wesley 24mm f1.4 and Pentax 25mm f1.4 on my GH2 and both are razor sharp

    almost Canon L Series sharp!!

    superb lenses !

     

    Is there any wider and longer lenses that are worth looking at too?

     

    I'm in two minds about what lenses to get for the pocket, not sure wherever it's worth getting lenses like the Samyang 8mm and 24mm to go along side my 14mm that I already have or go for something smaller and cheaper.

     

    What I'm not liking with these is the soft edges, I know a lot of lenses have soft edges but it's really noticable on some of the these C-mount stills

    6928234632_761daeeebd_z.jpg

     

    7074316325_afffc28b40_z.jpg

  5. Then you shouldn't buy this camera. I trust my Videospec app (containing Bitrate Pro), which says you can record two hours of ProResHQ on a 128 GB card. Full stop. What wedding ceremony lasts longer?

     

    Why not? The main reason I'd buy this camera is for Film and corporate work. Shooting longer running things would be a bonus as I always like to try and get the most out of a camera.

  6. all this worry seems like nonsense to me.  im gonna make do with a speed booster and some dslr lenses such as my rollei zeisses on my pocket.  might invest in a 25 distagon as my widest option, but if i need more in frame i'll move back or be creative with my shots.  wide shots are impossible to make look good unless you got big budgets.  my 25mm will be the equivalent of a 50mm on s35, and 50mm on s35 is the best focal length in terms of dof and width.IMO

     

    I'm not worrying, I just know I'll need to get more lenses when I get the Pocket camera, all I have at the minute is a Samyang 14mm and 85mm and a Sigma 24 - 70mm for my Canon 550D and only the 14 and 85 will be useful on the Pocket (due to them having manual aperture rings).


    From the way I shoot, I know I need something equivelent of the 24mm on a APS-C (so equiv to 38.4mm on FF) so that would need something around the 12mm mark.

     

     

    To get bokeh, we need to get used to longer lenses. With 35 mm f1.4, you'd get enough DoF for a close shot from 10-15 feet distance (of course, since the lens behaves like a 105 mm, it might be a rather close shot). But wide angle lenses, let's face it, don't have shallow DoF worth mentioning.

    The extreme wide lenses are less attractive on a BM Pocket.


    How would you connect the external recorder?

    They say, somewhere, that on a 128 GB SD card fit half an hour DNG and more than double that of ProResHQ. Bitrate Pro says, that ProResHQ 1920 @ 24 fps has an average datarate of only 147 mbps, and then 1h 56m would fit. Lets assume the DNG has 300 mbps (57 m recording time), then it would with 38 MB/s still be recordable on a SanDisc Extreme for 45 MB/s. It should at least work with an Extreme Pro.

    BTW: I love that Fujinon zoom.

     

    I'd have to use one of those HDMI output recorders (I don't know much about them tbh as I've never felt I needed them with a 550D, haha.

     

    I'm not overly into Bokeh or really Shallow depth of field, Don't get me wrong, I do like some so it doesn't feel like video with everything in focus.

     

    I'd love to get an anamorphic adapter to shoot stuff like this with it - http://www.youtube.com/watch?v=aVKTk2VTApg

    but they look expensive.

     

    You can get shallow depth of field with the 14mm on the 550D if the subject is quite near the lens -

    7005970725_db05df9698.jpg

     

    If I can achieve that sort of shallow focus on the Pocket, I'd be very pleased.

     

    Hopefully you can fit quite a bit of ProRes on to a 128GB card, as I like to have a least 3 hours of space when shooting.

  7. Choosing lenses will be one of the most cruical things for the Pocket camera. My Samyang 14mm 2.8 will be equivelent to a full frame 42mm on the pocket camera.

     

    I was thinking of getting the Samyang fisheye 8mm 3.5 as a wide, which would be equivelent to full frame 24mm on the pocket, but wasn't sure if there will be something better.

     

    My inital thought was to get something to cover were 8mm, 12mm, 14mm, 16mm, 24mm, 35mm and 85mm, which there full frame equivelents would be 24, 35, 42, 50, 72, 105 and 255mm.

     

    I already own both Samyang 14mm and 85mm, hence the 85mm being listed/ otherwise I'd have stoped at 105mm.

     

    I mean I'd like to have a lens like this with it, mainly to use for live events, weddings or similar kind of projects - http://www.youtube.com/watch?v=xDh_mrPuTJg

    I know I'd either need a lot of cards and shoot in Prores or an external recorder but I'd recon it would work well. Then again, I don't know if there's a better alternative lens.

  8. -----------------------------------------------------------------------------------------
    These Cards are too slow:
    SanDisk "Extreme 30MB/s UHS-1" 
    SanDisk "Ultra 30MB/s UHS-1"
    Transcend "Premium UHS-1 (dark blue card)"
    Class 10 SD Cards and below. 

     

    On this NAB video - http://www.youtube.com/watch?v=gg0VZWRy1NI, the Blackmagic rep mentioned Class 10 cards but he didn't mention the speed, so maybe 30MB/s cards might work for ProRes?

     

    Edit.

    Just looking on the BlackMagic site and they picture 45MB/s card so I guess you were right about them being too slow. It might be more worth while getting an external recorder? But then you'd be losing the RAW option right? Unless there's a RAW external recorder?

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