dr croubie said:Is that not how T-stop ratings work, T>f? ie DXOmark gives the EF 24 f/1.4 Lii a Tstop rating of 1.6, and the 17-55 f/2.8 has a T-stop of 3.4. At T2.95-3.7, I just guessed the new lens would have f/2.8-3.5, could be a lot wider aperture.Edwin Herdman said:Again, if you are going to claim this is f/2.8-3.5 you need to back it up because you're stating something that seems physically impossible - the lens having a smaller aperture than its T-stop rating permits.
An "ideal" lens would have T=f, impossible is T<f? Or maybe i'm backwards, it's late.
Larry Thorpe: "You can, but only in HD - 1920 x 1080 pixels. So it won't be as good as a still that you'd get from the 5D Mark II, obviously. But it's a decent picture and you can record stills to SDHC cards, which slot in the side of the camera. You've got CompactFlash for motion imaging but you can record stills to SDHC. "CJRodgers said:Sorry if this is a really dumb question, but will this be able to take stills aswell? I just havent seen anything about it?
Lack of AF doesn't necessarily mean it doesn't confirm focus.dr croubie said:Infinity focus yes, focus confirmation via a chip if you really want. (but seeing as this new C300 won't have dslr-type AF that doesn't matter)ferdi said:Do you have infinity focus with it? How about focus confirmation and correct aperture reporting?
Do PL-mounts have aperture reporting through electronic contacts either?
I meant: why bother putting on an adapter if Canon provides a PL mount for the same price (although a bit later)? Now that you told us you have both EF and PL mount lenses it makes more sense. I guess the C300 is for movie makers with just PL-mount lenses.dr croubie said:Why bother, is that directed to the PL- or EF-mount?ferdi said:For now their is no price difference between EF and PL mount so why even bother?
If i'm a filmmaker, I can take a C300 with EF mount out into the middle of Africa with an EF 1200 f/5.6 L IS and get some really good film from safe distances, or I can stick on the fisheye, or the 50 f/1.0, or 70 other lenses, *and* I can mount my expensive PL-mount lenses on the same camera.
I hope not, but I am afraid that's how marketing/sales works.Jettatore said:What I am concerned about is, will they "leave out features" on purpose only to make their high end offerings seem more reasonable?
dr croubie said:Jettatore said:I might agree with your Canon eccentricities comment -Drama. And can someone tell me why they have to release both a PL and an EF model at $20,000 each??? LOL, you mean to tell me the tech wizards at canon couldn't design one with a modular/swapable mount. Pop out the EF mount and swap it for a PL mount? Really not inspiring confidence here guys...
Or not even that, EF mount is 44mm, PL mount is 52mm. I can go to ebay right now and get a $10 adapter to mount a PL lens on my 7D. Anyone who buys the PL-mount C300 is locking themselves out of the EF-mount for not much benefit, but anyone who buys the EF-mount can use EF *and* PL (and not to mention, nikon, Olympus OM, pentax, M42, all Medium Format) lenses.
The only reason I can see for releasing a PL-mount C300 is to keep all the hollywood types (who don't understand much about mounts except for "i must have PL mount") happy.
ferdi said:Larry Thorpe: "You can, but only in HD - 1920 x 1080 pixels. So it won't be as good as a still that you'd get from the 5D Mark II, obviously. But it's a decent picture and you can record stills to SDHC cards, which slot in the side of the camera. You've got CompactFlash for motion imaging but you can record stills to SDHC. "CJRodgers said:Sorry if this is a really dumb question, but will this be able to take stills aswell? I just havent seen anything about it?
KitH said:dr croubie said:Jettatore said:I might agree with your Canon eccentricities comment -Drama. And can someone tell me why they have to release both a PL and an EF model at $20,000 each??? LOL, you mean to tell me the tech wizards at canon couldn't design one with a modular/swapable mount. Pop out the EF mount and swap it for a PL mount? Really not inspiring confidence here guys...
Or not even that, EF mount is 44mm, PL mount is 52mm. I can go to ebay right now and get a $10 adapter to mount a PL lens on my 7D. Anyone who buys the PL-mount C300 is locking themselves out of the EF-mount for not much benefit, but anyone who buys the EF-mount can use EF *and* PL (and not to mention, nikon, Olympus OM, pentax, M42, all Medium Format) lenses.
The only reason I can see for releasing a PL-mount C300 is to keep all the hollywood types (who don't understand much about mounts except for "i must have PL mount") happy.
There's a bit more to it that just swapping mounts, if you want to keep the focus scale (and we're talking to people who use tape measures and depth of field tables here) then here's a link to Zeiss' take on swapping mounts. http://www.youtube.com/watch?v=F6807EKs1SU They have to take special care to align and calibrate each lens to each camera and insert slender shims to make it exact. Ten minute job if you're good.
Zeiss Compact Primes are basically the familiar lenses we know from 35mm rehoused in cine compatible barrels and with smoother apertures and accurate distance scales. They have to be all the same size to fit the focusing mechanisms used by the focus puller (yes, that's a skilled job in itself).
The new Canon primes sound to me like our fast EF L-primes, similarly rehoused, going from 24mm f1.4 to 24mm T1.5, and 50mm and 85 f1.2 to T1.3 and without AF. Noted Canon doesn't really shout about these ones being all-new designs.
The difference between f stop and T stop was once explained to me as f is for people who like buying lenses, T is for people who like to stop the swearing in edit suites because of inconsistent exposure with different lenses.
On balance, reading a lot of the announcements and discussion, much of what Canon has done here is listen to the people who have to pay for post-production and do everything they can to avoid additional work on the images. I've heard (someone from a big studio, can't recall which one) the cost savings of shooting films for TV with a 5DII is taken out by increased post-processing work needed.
On the other hand, they may simply be taking the battle to Zeiss, who could be giving them cause for concern through their cosy relationship with Sony.
On the splitting camera lines into stills and video, there may be some business justification there. Broadcast rights and still image rights to big events (like the FIFA World Cup) are sold separately. These are huge content deals and there were rumblings in South Africa about the photographers upsetting the broadcasters by pitching up with cameras shooting HD material just as easily as taking stills.
dilbert said:Drama79 said:I'd agree with several of these posts. I'll be very interested to see price point and uptake. It would seem that Canon have missed the point slightly, in that the enthusiasm for DSLR film making is from people who value a camera that can do both, and don't have the money to split their interests across two product lines.
If this is a high end product, aimed at Hollywood, then fine. I have a feeling though, that this might be one of those Canon eccentricities that never really finds it's desired market.
It is a higher end product than than their DSLRs.
Canon sees these cameras as being something to compete with the cheaper(?) Arri cameras.
The C300 cameras are not and were not targeted at people who take photographs. Yes, maybe they can, but nothing about their specifications or look says that to me. The C300s have neither automatic focus nor automatic exposure.
For those that are using the 5D2 or 7D to shoot video, I think the concept cinema DSLR is the one to watch for.
Now where will that get priced? Interesting question.
I can easily see it being more than a 5D2. More than the 1DX? Hard to say without knowing the full feature set. It could easily be $4k-$5k or more if it brings with it an increase in performance that results in requiring less post processing (time is money.)
Axilrod said:For $6800/each it better be something more than an old L lens in a new housing
gene_can_sing said:I actually think the hybrid DSLR / Video will be a huge seller.
1) It will be a very good, full frame stills camera. Probably limited to 12 mp for stills, since that's about the max / ideal mp for good 4K video. For me 12k stills is perfectly fine. I'm sure with Digic V, the still will be top quality.
2) Unlike some people have mentioned, I'm sure you have the option of shooting 2K or 4K video. You don't have to just shoot 4K. Even the current DSLRs give you and SD or HD option.
3) The reason why I like this is because it's more an all around solution. I love Full Frame video (only Canon offers this), yet with this upcoming DSLR, you can still do cool stills oriented stuff like Time Lapse photography (which you can't do with video cameras); and yes, take good photos.
4) It probably won't have the 1Dx 64 pt (is that correct?) auto focus and maybe not as high performing ISO, but will probably be a better stills performer than the upcoming 36mp Since it will have lower MP which translates to less noise. I'd be fine with a 7D style auto focus, even if it does have way less points.
That just means, less cameras to carry around. If you can deal with being limited to 12mp, I think this will be a great balance of both worlds. You'll get top performance in stills and a great video camera.
Axilrod said:gene_can_sing said:I actually think the hybrid DSLR / Video will be a huge seller.
1) It will be a very good, full frame stills camera. Probably limited to 12 mp for stills, since that's about the max / ideal mp for good 4K video. For me 12k stills is perfectly fine. I'm sure with Digic V, the still will be top quality.
2) Unlike some people have mentioned, I'm sure you have the option of shooting 2K or 4K video. You don't have to just shoot 4K. Even the current DSLRs give you and SD or HD option.
3) The reason why I like this is because it's more an all around solution. I love Full Frame video (only Canon offers this), yet with this upcoming DSLR, you can still do cool stills oriented stuff like Time Lapse photography (which you can't do with video cameras); and yes, take good photos.
4) It probably won't have the 1Dx 64 pt (is that correct?) auto focus and maybe not as high performing ISO, but will probably be a better stills performer than the upcoming 36mp Since it will have lower MP which translates to less noise. I'd be fine with a 7D style auto focus, even if it does have way less points.
That just means, less cameras to carry around. If you can deal with being limited to 12mp, I think this will be a great balance of both worlds. You'll get top performance in stills and a great video camera.
I agree 100%, that is going to be their moneymaker. Considering the 1Dx is $6800, if you removed some of the still features and added some video features it seems like it would be easy to get it priced around $4k-$6k.
dilbert said:Axilrod said:For $6800/each it better be something more than an old L lens in a new housing
The value of these lenses is not just in the optics but also being able to set the distance marker for focus at, say, 20', and for the focus to be exactly that each and every time you move the focus ring to that distance.
Normal stills camera lenses (such as the 85/f.1.2) do not have properties such as this.
Hmm, I apparently was imagining things. Right, I don't have a problem with having actual T-stops larger ("narrower" in aperture terms) than the f-stops. Sorry for the harangue!Meh said:dr croubie said:Is that not how T-stop ratings work, T>f? ie DXOmark gives the EF 24 f/1.4 Lii a Tstop rating of 1.6, and the 17-55 f/2.8 has a T-stop of 3.4. At T2.95-3.7, I just guessed the new lens would have f/2.8-3.5, could be a lot wider aperture.Edwin Herdman said:Again, if you are going to claim this is f/2.8-3.5 you need to back it up because you're stating something that seems physically impossible - the lens having a smaller aperture than its T-stop rating permits.
An "ideal" lens would have T=f, impossible is T<f? Or maybe i'm backwards, it's late.
I believe that's correct. A T-stop can be measured for any lens, it is common for cine-lens where very precise control and consistency of the exposure is required. For any lens, the T-stop is the equivalent f-stop if the lens had zero transmission loss. Therefore the T-stop is always higher (larger number) than the f-stop of the lens.
Well, for video pros it probably doesn't seem that prices are rising. These prices seem in line with other lenses in the same classes. EF stills lens users who wanted true PL-style ergonomics and optical corrections at EF mount prices were hoping for too much.shenshaw said:Re: price... The writing is on the wall for prices to continue to rise. They know that they can lure the cinema folks into paying a premium for "cine" products.
Axilrod said:I see the advantages, but damn the Zeiss CP.2 do the same thing and they are almost half the cost.
DavidRiesenberg said:The CP2s are slower. Take a look at the Arri prime counterparts on the other hand. Simmilar T-stop as the Canons but double the price. So depending on one's point of view, these could be called the bargain of the century.![]()