webrunner5 Posted August 15, 2018 Share Posted August 15, 2018 18 minutes ago, IronFilm said: Most C mount or S16 will not cover the large BMPCC4K sensor. I don't think even B4 lenses with the doubler in them won't. It would be damn close if it does. Quote Link to comment Share on other sites More sharing options...
Emanuel Posted August 15, 2018 Share Posted August 15, 2018 13 hours ago, webrunner5 said: (...) https://camerasize.com/compare/#698,782 Now accurate : ) Would even be much more if that battery would be placed in-between. Perception counts, not only maths :-) Quote Link to comment Share on other sites More sharing options...
majoraxis Posted August 15, 2018 Share Posted August 15, 2018 Most B4 HD lens with a doubler will cover a m4/3 as the B4 lens is 2/3" and with the doubler makes it cover ~4/3". Worst case coverage wise should be some minor vignetting at the very wide end (testing of individual B4 lenses is required.) The issue is that B4 lenses are not designed for a single chip camera, but rather 3 x CCD sensor cameras like the Sony F23. The B4 lens optically compensates for the different color channel arrival time due to being split by a prism, so without a prism in the optical path the image is soft with chromatic aberration wide open at the wide end of the lens. An optical adapter like the Abakus 132 compensates for the lack of a prism in the optical path. In order to cover the m4/3 sensor an Abakus 132 can be paired with an Olympus 1.4x m4/3's extender, which makes the magnification factor 1.32 x 1.4 = 1.85x. Ideally it would have been 2x, but depending on the B4 lens and how generous the manufacture was with their lens' image circle size there is a good chance it will cover - or require a little crop in post. Once I have my Pocket 4k, I will do some B4 lens tests with different adapter combinations to evaluate them for both the 1080p cropped 120fps slow motion mode and the standard non-cropped m4/3 sensor mode. These tests will include DigiPrimes, DigiZooms, Fujinon and Canon B4 cinema lens with the Tilta Nucleus M wireless follow focus as an alternative to the broadcast B4 zoom rocker grip lens. I will do it in a separate thread when the time comes. Here's a picture of the GH5 with a Fujinon 4.5mm 13x HD B4 lens, Abakus 132 Super16 to PL adapter, Pl to m4/3 adapter and Olympus m4/3 1.4x extender. Quote Link to comment Share on other sites More sharing options...
jagnje Posted August 15, 2018 Share Posted August 15, 2018 3 hours ago, IronFilm said: Most C mount or S16 will not cover the large BMPCC4K sensor. We were talking about original bmpcc. It is a S16 and to use it as such is a joy. Quote Link to comment Share on other sites More sharing options...
JordanWright Posted August 15, 2018 Share Posted August 15, 2018 https://www.amazon.co.uk/gp/product/B00LL4QUTE/ref=ox_sc_saved_title_4?smid=A3P5ROKL5A1OLE&th=1 Transcend CFast 2.0 CFX650 128 GB Currently on sale £138 on amazon. Reviews say it works on the 4.6k so should be okay for the new Pocket 4k Quote Link to comment Share on other sites More sharing options...
webrunner5 Posted August 15, 2018 Share Posted August 15, 2018 B4 lenses worked great on my AF1000 with the 2x extender in them. This is a 14x, and a 19x Fuji and I use a dumb 40 dollar adapter. I used it on my Panny G7 and GH3. Most of the cheap B4 lenses you find will have the servo motor for the power zoom burned out. You can swap most of them out, but I find it is pretty easy to zoom them by hand anyways. Zooming is not "In" like it used to be anyways. Now Focus Pulls yeah, but that is not a zoom function. They are a bargain for what they can do. Kind of big on the G7, GH3 though. I Only paid 50 bucks for the 14x, and 150 bucks for the 19x, both from Adorama with free shipping. Quote Link to comment Share on other sites More sharing options...
webrunner5 Posted August 15, 2018 Share Posted August 15, 2018 Well I know the know PK4 looks kind of big, but it depends on what it is placed next too. Quote Link to comment Share on other sites More sharing options...
jonpais Posted August 15, 2018 Share Posted August 15, 2018 It looks pretty small when placed beside my wallet. ? Quote Link to comment Share on other sites More sharing options...
webrunner5 Posted August 15, 2018 Share Posted August 15, 2018 13 minutes ago, jonpais said: It looks pretty small when placed beside my wallet. ? You would have to have a Damn big wallet if you paid in Vietnamese dong! I remember when I was in the Navy in the 60's a Used Ferrari was over a Million Lira in Italy! Yikes. First Ferrari I bought in the mid 70's was like 5 thousand dollars. Needed the engine overhauled which I did myself but.. Was a 1963 like this one. https://www.hemmings.com/classifieds/dealer/ferrari/330gt/1966385.html Quote Link to comment Share on other sites More sharing options...
DBounce Posted August 15, 2018 Share Posted August 15, 2018 26 minutes ago, webrunner5 said: Well I know the know PK4 looks kind of big, but it depends on what it is placed next too. It is big. I held it in my hands... And I have the 1DXMk2. Keep in mind that's a full frame pro camera... which is built like a tank and weather sealed. Also battery can last a day on the Canon. You will be happy with 40 minutes on the PK4. Also, no one ever said the Canon was a "pocket" camera. Pending real footage, I will buy the PK4, but I am expecting limitations and accepting them as part of the deal. If you do otherwise, you will be in for a disappointment. Quote Link to comment Share on other sites More sharing options...
kye Posted August 16, 2018 Share Posted August 16, 2018 20 hours ago, majoraxis said: I've noticed that a camera rig looks funny when the microphone sticks out further than the camera lens, but doing this to correct it is going a bit far!! Quote Link to comment Share on other sites More sharing options...
photographer-at-large Posted August 16, 2018 Share Posted August 16, 2018 Quote Link to comment Share on other sites More sharing options...
jonpais Posted August 16, 2018 Share Posted August 16, 2018 55 minutes ago, photographer-at-large said: While it’s a nice idea and all, it sells for $400. So in a sense, we can deceive ourselves into believing the batcam is giving us $1,700+ of real value now. ? Quote Link to comment Share on other sites More sharing options...
webrunner5 Posted August 16, 2018 Share Posted August 16, 2018 That looks like a nice product for 399 bucks. https://store.n.ki/products/solidpod And put a 256GB one in it. Good to go. https://www.amazon.com/gp/offer-listing/B07864YNTZ/ref=dp_olp_all_mbc?ie=UTF8&condition=all Quote Link to comment Share on other sites More sharing options...
Anaconda_ Posted August 16, 2018 Share Posted August 16, 2018 2 hours ago, webrunner5 said: That looks like a nice product for 399 bucks. https://store.n.ki/products/solidpod And put a 256GB one in it. Good to go. https://www.amazon.com/gp/offer-listing/B07864YNTZ/ref=dp_olp_all_mbc?ie=UTF8&condition=all But - The Samsung T5 is a lot cheaper than that and has the memory built in... Unless you're looking for a way to avoid using the USB port I guess... That said a could 128gb CFast cards are around the same price as that option. Or better yet 1 256gb card is actually cheaper than going down the route of Cfast - SSD. https://www.amazon.co.uk/Delkin-Cinema-CFast-Memory-Card/dp/B01H5C79AE/ref=sr_1_1?s=computers&ie=UTF8&qid=1534396663&sr=1-1&keywords=cfast+256gb Also, what if the camera needs the card door to be closed? It's a possibility. Quote Link to comment Share on other sites More sharing options...
jonpais Posted August 16, 2018 Share Posted August 16, 2018 It can be closed. This is for the Canon C200, not the batcam. Or am I missing sthg? Quote Link to comment Share on other sites More sharing options...
graphicnatured Posted August 16, 2018 Share Posted August 16, 2018 10 hours ago, DBounce said: Pending real footage, I will buy the PK4, but I am expecting limitations and accepting them as part of the deal. If you do otherwise, you will be in for a disappointment. Isn't that the case with every camera ever made? I can't imagine anyone on this forum expects perfection from anything they buy, especially not if they read the forum posts here and elsewhere. I can't think of a single piece of gear I own that I don't have something I wish was better or different on. IronFilm and jbCinC_12 2 Quote Link to comment Share on other sites More sharing options...
jonpais Posted August 16, 2018 Share Posted August 16, 2018 It’s axiomatic. Quote Link to comment Share on other sites More sharing options...
Savannah Miller Posted August 16, 2018 Share Posted August 16, 2018 3 hours ago, graphicnatured said: Isn't that the case with every camera ever made? I can't imagine anyone on this forum expects perfection from anything they buy, especially not if they read the forum posts here and elsewhere. I can't think of a single piece of gear I own that I don't have something I wish was better or different on. I have seen images from GH5s and Terra 4K so I know what to expect as far as dynamic range. I don't think Blackmagic should have any problems with color science either, so in that regard I have realistic expectations as to what the footage will look like. I think the Blackmagic camera will have obvious limitations but not much different than people who come from cameras without autofocus and IBIS like 5D Mark III, etc. Quote Link to comment Share on other sites More sharing options...
Tone1k Posted August 16, 2018 Share Posted August 16, 2018 1 hour ago, Savannah Miller said: I have seen images from GH5s and Terra 4K so I know what to expect as far as dynamic range. I don't think Blackmagic should have any problems with color science either, so in that regard I have realistic expectations as to what the footage will look like. I think the Blackmagic camera will have obvious limitations but not much different than people who come from cameras without autofocus and IBIS like 5D Mark III, etc. JB seemed to allude to the fact that it's not the same sensor as Gh5.....? Quote Link to comment Share on other sites More sharing options...
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