pgb

pgb

Lives in Australia sydney, Australia
Works as a Video online editor
Joined on Sep 7, 2003
About me:

Take more photos and switch off the computer.

Comments

Total: 44, showing: 1 – 20
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In reply to:

jkoch2: 4.2.2 4k over HDMI to external recorder? This limits use to tripod and dolly shots with slow set-up and staged action for which there are already various dedicated studio cameras available.

More practical: 4.2.0 4k that records 4k internally to economical cards, with either 5-axis stabilization or gyro-based Balanced Optical Steadyshot. A large sensor is no help if it demands slow readout that aggravates rolling shutter. Any casual video shot in 4k will require a moderate depth of field, or else be marred by focus-hunting or missed focus. A 1/1.7" or three 1/2.3" sensors should be fine for that and produce less heat too. Built-in ND filters great too.

4k successors to the X920, PJ790, G6, GX7, LX7, or HX400 could offer this. Canon or Nikon could, too, but will probably wait 4-5 years. An RX100iii or RX10ii might also succeed, if only the stabilizers and (slow) read-outs improved to reduce jello and banding of hand-held shots that afflict the AX-100 with the same 1" sensor.

'I need 4.2.2 about as much as I need an 18-wheel truck'

422 has been the norm in the pro video world for 20 years, do you want to go back further in time. 420 would be fine for home movies, corporate vids and indie films.

Direct link | Posted on Apr 11, 2014 at 16:18 UTC
In reply to:

peevee1: One more thing about the Sony's marketing BS.
The 4:2:2 4k HDMI output is not real, it is interpolation, you cannot produce real 4:2:2 out of color filter array without oversampling and binning. Bayer has only 1 red and 1 blue pixel in each 2x2 group, you can get good 4:1:1 or 4:2:0 out of it but no real 4:2:2.
Now, 1080p30 out of the whole sensor (but not their line-skipping 1080p60!) could have been real 4:2:2 - I wonder why their internal recording is limited to 4:2:0 only? It should have been 4:2:0 4k (which would be fine) and 4:2:2 (or even 4:4:4) 2k, but they somehow managed to screw everything up. :(

The Arri Alexa, Sony F65 and Red are bayer and they allow debayering to 444 codecs, is this all crap and they only need to make 4:2:0?

Therefore most movies are shot in 4:2:0 and they look pretty good.

Are you saying you need an RGB sensor to create 444 / 422 ?
Is there a RGB cine camera still on the market like the Gensis,
it's pretty much bayer now.
Bayer may sub sample but the synthesis of the other two colours is quite evolved and works. Every Dslr user would probably agree.

Direct link | Posted on Apr 11, 2014 at 16:04 UTC
In reply to:

Ron A 19: What a great idea! The A7s uses the same approach as the d700 - less resolution, more sensitivity. However, now that all cameras can give low noise at ISO 12800, I wonder if it's really necessary for sony to push resolution downward to 12MP. Seems that the real benefits aren't for stills but for low light video. I'm sure this will do very well in a videographer's arsenal.

I think 12mp is more about no down scaling to 4K or an even number to HD. The fact it is cleaner and possibly even more DR is a side effect. It seems to contradict `the pixel size doesn't matter' devotees.

Direct link | Posted on Apr 11, 2014 at 06:49 UTC
In reply to:

Morpho Hunter: Scratches head ...who needs 4k video?

Scratches head in 25 years' time ...who needs 4k video?

4K/UHD certainly takes some processing. I've just been testing a UHD Prores 444 QT on a 12 core mac tower. All the cpu's are 25% busy and that's just playing a QT movie. Data rate is 1.2 Gbps and that's with 6:1 compression.

Direct link | Posted on Apr 11, 2014 at 06:20 UTC
In reply to:

bawbaw: YAY, DpReview once again manage to report more about the video features than the still features of a product launch. I take it once again the editorial team has not managed to work out the P isn't an F and also what the P stands for.

Sorry to say it, but grabbing hits for advertisers at a lack of editorial quality means I visit here a lot lot less than I ever did.

The camera is aimed at the video user with some trail blazing features at this price point. It's also good for amateur and web photography, depending what you shoot.
There's really nothing to mention in the photo mode that the other two A7 can't do. DR and high iso may be better.

Direct link | Posted on Apr 10, 2014 at 22:08 UTC
In reply to:

olyflyer: Very interesting. I always wondered why we can't control the exposure in even higher detail, at pixel level. I understand that currently that's too much to ask, but I believe it is coming some times in the future.

Olyflyer - Magic Lantern has dual iso readout. If he was able to reverse engineer this it would be relatively easy for the manufactures to implement it.
http://www.dpreview.com/forums/post/53174283

Direct link | Posted on Mar 16, 2014 at 09:05 UTC
On Sony a6000 First Impressions Review preview (899 comments in total)
In reply to:

northernblonde1: pgb. Thanks for that link. One of the best reviews ever & wonderful photographs with the a6000. Enjoyed it hugely & learnt a lot!

below http://www.alinpopescu.eu/blog/full-review-focus-tests-sony-a6000-beautiful-dream/

Direct link | Posted on Mar 15, 2014 at 00:30 UTC
On Sony a6000 First Impressions Review preview (899 comments in total)
In reply to:

brownie314: such a pretty little body, but such ugly lenses! OK, here comes the hoard of people telling me that it doesn't matter what a camera looks like. Please, save your comments for 2008. Today - yes it does matter. I like the pancake prime, and the collapsible zoom - but other than that the other primes look like a can of Vienna Sausage.

... or a can of tuna but the body is very businesslike. Time for a change from the Canon melted butter look but that was revolutionary in its day. Strange how things go around in circles.

Direct link | Posted on Mar 13, 2014 at 11:17 UTC
On Sony a6000 First Impressions Review preview (899 comments in total)
In reply to:

Galbertson: Has anyone found an adapter for hot shoe to use higher quality microphone other than sonynys one microphone for nex 6? I am floored sony did not include mic jack., as in nex 7. Seems a given, wouldn't you think?

Of course buying an A7 or future A7000 is whats behind this omission so I doubt a cheap hotshoe interface will be available.

I assume Sony hotshoe mics would go on any Sony camera ?
So I can't see why the stereo mic couldn't be modified. You wouldn't have to toss the mics like on utube but extend them as well so they can be used. It could be done a lot cheaper that he did.
Illegal, your not hacking their code but doing a very basic modification to something that you own, so probably not, and you have to buy a mic from them as well.

I was going to buy an A7 but trying this instead is tempting.

Direct link | Posted on Mar 13, 2014 at 10:53 UTC
On Sony a6000 First Impressions Review preview (899 comments in total)
In reply to:

Galbertson: Has anyone found an adapter for hot shoe to use higher quality microphone other than sonynys one microphone for nex 6? I am floored sony did not include mic jack., as in nex 7. Seems a given, wouldn't you think?

There is a balanced XLR one for $800 !! There's a radio one too for less but I think it was limited to 8khz, ok for voice. One guy hacked an existing hot shoe mic and put a jack on it.

Yeah, no mic in makes this limited for video work without the hassle of a separate recorder and post syncing. It seems to be difficult to record reasonable audio in 2014!

Direct link | Posted on Mar 10, 2014 at 19:06 UTC
On Sony a6000 First Impressions Review preview (899 comments in total)
In reply to:

northernblonde1: pgb. Thanks for that link. One of the best reviews ever & wonderful photographs with the a6000. Enjoyed it hugely & learnt a lot!

Yes, the excellent photography made it credible. The line `iso use-able up to 8000' was very simple to understand. It looks like a great camera. The author is very talented and generous.

Direct link | Posted on Mar 10, 2014 at 18:55 UTC
On Sony a6000 First Impressions Review preview (899 comments in total)

Here's an excellent review -
http://www.alinpopescu.eu/blog/full-review-focus-tests-sony-a6000-beautiful-dream/

Direct link | Posted on Feb 25, 2014 at 17:46 UTC as 137th comment
On Sony Alpha 7 Review preview (1599 comments in total)
In reply to:

driftnomore: next time,don't waste your money on any sony product.........

To add to dynaxx, here's another Sony product that I really like -
http://pro.sony.com/bbsc/ssr/product-MVS7000X/

Direct link | Posted on Feb 1, 2014 at 12:21 UTC
On Sony Alpha A7 / A7R preview (2381 comments in total)
In reply to:

TerryBoyd: I am keen to hear that I may be able to use some of my old Zuiko lenses, including a treasured 50mm F1.2 (!) Can you confirm that the old OM lenses are adaptable? This could well be a selling point for me I guess, since lens availability is rather limited at present.

I have three good OM's 24,50,135 and I thought these would a be a good start with the kit or possibly the 24-70 Zeiss later. Being able switch to 1.5x crop mode would reduce lens swapping with the primes.

But this thread will make me wait for more user reports -
http://www.dpreview.com/forums/post/52686010

Direct link | Posted on Dec 21, 2013 at 18:59 UTC
On Nikon Df Review preview (1616 comments in total)
In reply to:

noirdude: if only nikon can make the body as small or slightly bigger than the sony A7… the Df design is just too bulky for a retro camera

When I heard about this I thought it would be an FM3 clone or similar to the A7. Too many knobs on top too, I don't remember classic cameras looking like that, maybe 1950's models.

Direct link | Posted on Dec 21, 2013 at 09:11 UTC
In reply to:

QuarterToDoom: For all of you who think Nikon is right, here's one for you. This goes beyond ridiculous.

I couldn't upload to the galleries for some reason (gave me errors) so had to upload it to my server.

http://192.99.1.212/polaroid-vs-nikon.jpg

There's a lot more different between the two vans than the two cameras other than four wheels. You would have to be brain dead to inadvertently buy the wrong car brand. Not so buying a cheap camera in a busy market.

Direct link | Posted on Dec 8, 2013 at 01:59 UTC
In reply to:

xentar: Everyone should sue everyone until all manufacturing and craft is prohibited due to patent violations.

The lens does prove a blatant attempt to clone another's work
to confuse the buyer.
The lens grip texture is an identical colour and similar pattern, the shutter and lens buttons are are identical and just re-positioned. If they made the lens grip black plastic they would have got away with it.

Direct link | Posted on Dec 8, 2013 at 01:49 UTC
On Sony Alpha A7 / A7R preview (2381 comments in total)
In reply to:

Martos164: Congratulations to Sony on this bold move with the A7 &A7r. Its a mile stone in digital technology. I"m impressed . It looks retro,with features you saw in old film cameras from yester year. Also it looks like it has all the features from Canon & Nikon full frame cameras,except its in a little package. Some people might quip,and whinge about its looks. I couldn't care less what they think. If the cameras can do,as what Sony says they can do ,then i want one.The cameras,look as if they have been designed by someone,who like simple,robust,tough,well designed features in a camera.

Give it time,and i think Sony will rule. Sony must've spent a small fortune on R&D. I hope people,will take to these cameras,like ducks to water. If they do,the prices will drop. Sony can see the future in digital technology,and its heading in the right direction.

My only beef is the lens price. If Sony,can reduce the lens prices, to match the other camera,giants,then they will win the camera war

Here's a previous bold move from Sony that worked pretty well -
http://www.dpreview.com/reviews/sonydscf707

Direct link | Posted on Oct 24, 2013 at 15:51 UTC
On Sony Alpha A7 / A7R preview (2381 comments in total)
In reply to:

pgb: Affordable Sigma E mount lenses would help sway me. Sony should give Sigma the protocol if they want to sell bodies. The clean HDMI would
make 10 bit video recordings possible assuming the HDMI is the 10 bit version.

Looks rugged and cool, who cares if the size advantage disappears with EF etc lenses, you can always use primes or native lenses, your choice.
An E to EF adapter that works fast would really sell.

Evf is not a positive, I can't believe it looks as good as optics but I've
never seen one. It would be great for my manual primes.

If it had IBIS I'd be really tempted but maybe that's too hard with FF.

CopperMike I'm aware of all those benefits and their great, thanks
for confirming. It just occurred to me that video and EVF solves a problem!
Are there any over heating concerns with the NEX and video for long periods?

I think I'll become a cross system person as I have a good set
of very small FF Zuiko primes. Manual focusing on an OVF crop is almost impossible for me. I like the `not too retro' look of this camera, looks like
an Olympus OM1/4 and much the same size.

It's not surprising that Sony now make the best sensors, they have been leading digital imaging since the beginning with professional TV cameras. Here's another Sony product that processes light real time that I can recommend -

http://pro.sony.com/bbsc/ssr/product-MVS7000X/

Direct link | Posted on Oct 24, 2013 at 15:08 UTC
On Sony Alpha A7 / A7R preview (2381 comments in total)

Affordable Sigma E mount lenses would help sway me. Sony should give Sigma the protocol if they want to sell bodies. The clean HDMI would
make 10 bit video recordings possible assuming the HDMI is the 10 bit version.

Looks rugged and cool, who cares if the size advantage disappears with EF etc lenses, you can always use primes or native lenses, your choice.
An E to EF adapter that works fast would really sell.

Evf is not a positive, I can't believe it looks as good as optics but I've
never seen one. It would be great for my manual primes.

If it had IBIS I'd be really tempted but maybe that's too hard with FF.

Direct link | Posted on Oct 23, 2013 at 14:38 UTC as 300th comment | 3 replies
Total: 44, showing: 1 – 20
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