February 27, 2015, 09:25:26 PM

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Messages - dilbert

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EOS Bodies / Re: DPReview Interview with Chuck Westfall of Canon USA
« on: February 13, 2015, 12:26:29 PM »
I'm glad to see wedding talk. I recall almost universal agreement as to why 36MP was worse of weddings in every respect because it was huge, not necessary, and didn't go to ISO 500K. I predicted the tunes would change as soon as canon went higher. I'm not saying you changed your view and I'm not applying this to you, but I'm amazed as to how suddenly 50MP is just right for weddings because they are canon MP :p. Many Photographers are so brand dishonest with their statements that it is sad to see how they flip 180 just on a logo. I was all along on board that 36 was never too much, and I'm still on board that 50 isn't too much either.

A similar thing was observed in the Nikon camp with the D700 languising at 12MP whilst the 5D2 had 21. Then along came the D800.

Photography Technique / What is your keeper rate?
« on: February 13, 2015, 09:02:44 AM »
For those that clean up their collection of files after a shoot, what is your goal ratio of those kept vs deleted?

Photography Technique / Re: Best Place to order good quality prints?
« on: February 13, 2015, 08:56:22 AM »
As I get prints mounted when they're done, I use local print houses.

It also means that I can sit down with someone and do some quick colour editing to ensure that I get the colours that I want (their computers are calibrated for their printers.)

EOS Bodies - For Stills / Re: Coincidence or?? MP/SEC
« on: February 13, 2015, 08:53:21 AM »
Megapixels don't equal Megabytes.  It's kind of hard to compare or talk about data transmission when those (megapixels) aren't the units of measure that are used.  I have a 7DII. It has a 20.2MP sensor but the files from it can be upto 30+MB in size.  The amount of data depends on how much is going on in the frame. If you had a consistent image then it might be comparable. 

The file size is the output of the pipeline that involves reading data from the sensor and compressing it for CR2. The size of data in the output stage is much smaller than what comes in at the other end. Thus the measuring data rate processing capability is more correctly based on MP/sec than MB/sec.

EOS Bodies - For Stills / Re: 7D mark II corrupt files on SD card
« on: February 13, 2015, 08:45:24 AM »
In the past I've had "corrupt" files on a CF card.

The problem wasn't the card or the camera.

The problem was the card reader.


To work around this, try transferring the same files from the camera (plug USB cable into the camera and transfer files that way) rather than using a card reader.

Watch out for reflections.

EOS Bodies / Re: RAW file size of crop mode in 5Ds/5DsR
« on: February 12, 2015, 06:26:38 AM »
Could Canon have incorrect data listed on their site, or is it just as simple as a full 50 MP CR2 file with a flag set for cropping in the raw editor?

Could be both, but they have the file sizes right for jpeg :-o

If it's just a flag for jpeg and the in-camera preview, Canon can expect bucketloads of sarcasm until the June release. And probably only Canon's own DPP will honor this flag while other raw converters like Adobe/DxO/oss will leave it up to the user to expertly apply the crop tool :-)

It does sound like something Canon would do though, "when in doubt, software-fix it":
  • in-camera hdr for lack of dr on 5d3/6d
  • multi-shot noise reduction for high iso noise on crop
  • new: software crop flag for high jpeg file sizes on 5ds

That's pretty much how B&W works when you shoot raw: a B&W JPEG (previews) is included in the raw file but the raw file still has full RGBG data plus a "flag" saying that it is a B&W shot. When you load pictures like this up in LR, in previews you see B&W but after it renders its own preview, it is always in colour.

So I'm not surprised that they chose to do the crop mode in this fashion but it is not what anyone was expecting.

But it kind of makes sense...

When you are shooting in "cooked" mode (where JPEGs are all that is written to your card) then the size will be reflective of the crop factor. If you're using it for sports or other photographic endevours where the luxury of time to process raws is not available then you will benefit from the crop-mode size saving.

When you are shooting in raw mode, all of the raw sensor data is written to the card but the JPEG file included inside the raw file is rendered in crop mode. This should also make the raw files slightly smaller...

EOS Bodies / Re: DR from 5Ds will be 2 stop better then 7D mk II
« on: February 12, 2015, 12:12:09 AM »
Well if the new sensor design is already operating at significantly lower temps then I wouldn't think any additional ventilation or heat sinking would be necessary.

I think the reason it's operating at lower temps is due to some kind of active cooling. Canon was working on that a while ago, and it seems they may have finally put the technology to use. Especially of "significantly" means at or below ambient...for that to be the case, some kind of active cooling (best thing that comes to mind is heat pipes) would definitely be necessary. If the sensor maintains a below ambient temperature, something like a peltier would have to be used...but that draws a LOT of power (they aren't very efficient, just very effective)...

Or sealed in liquid of some sort?

EOS Bodies / Re: Interview With Head of EOS 5Ds & EOS 5Ds R Development
« on: February 12, 2015, 12:11:05 AM »
I do wish people would stop saying this. Lenses do not out resolve sensors, sensors do not out resolve lenses, they are in symbiosis and neither will ever achieve 100% of their potential however good the other is.

I beg to differ.

If you put a lens on a camera that can only generate 1lp/mm on a camera that has 100 pixels per mm then I can say that the camera outresolves the lens.

EOS Bodies / Re: Skipping the 5D-s. What do you want in 5D4?
« on: February 11, 2015, 06:55:33 PM »
1. All Crosstype AF
2. Linked AF Point Spot Metering? (May be in 5D-s)
3. 1/250th Sync speed bump.

Won't happen.

4. Bump to 7-8 FPS.

This will depend in part of if it is DIGIC 6, DIGIC 6+ or DIGIC 7 and the number of MP.

5. Dual CF

Not enough space in the camera.


Maybe. Depends on how video focused Canon sees the camera.

7. 4K
10. RAW 1080P Video or 4K if possible. (ML managed to do it. Canon can.)

I like your optimism :)

8. Touchscreen


9. Peaking and Zebra

Won't happen. Wrong target market.

... why didn't you put "clean ISO 6400" or "clean ISO12000" on your list? ;)

EOS Bodies / Re: DR from 5Ds will be 2 stop better then 7D mk II
« on: February 11, 2015, 05:58:57 PM »
Latest update (Feb 10th) from NL is stating Other testers as well are also claiming the 5DS/R has the best Dynamic range of any pro current canon camera.

Ok i think this deserves a CR2 by now.

My grandmother has more DR than any current pro canon camera.


And the benefit of such a comment?

It is a joke poking at the lack of evidence of the claims being made - anyone can claim anything but providing evidence to back up those claims is another thing.

Thus far we have people making claims and ... no evidence in the form of raw files.

EOS Bodies / Re: DR from 5Ds will be 2 stop better then 7D mk II
« on: February 11, 2015, 09:30:11 AM »
Latest update (Feb 10th) from NL is stating Other testers as well are also claiming the 5DS/R has the best Dynamic range of any pro current canon camera.

Ok i think this deserves a CR2 by now.

My grandmother has more DR than any current pro canon camera.

EOS Bodies / Re: DR from 5Ds will be 2 stop better then 7D mk II
« on: February 11, 2015, 09:17:07 AM »
Maybe the 5DS will buy them some time to develop a newer sensor. That would be fine with me, since if I had to choose I think  somewhere around 35 MP is plenty of resolution even for landscapes.

Buy them some time how? And how much time?

Lead time for a DSLR like the 5Ds is probably 3 to 4 years - maybe 5.

Does Canon have that long to keep Sony and Nikon at bay?

Hard to tell.

But if the 5Ds doesn't deliver (and neither does the 5D4) in terms of DR and low noise then you'll see more and more people leaving Canon for Nikon/Sony.

Canon is running out of time.

EOS Bodies / Re: First DSLR with 3G/4G?
« on: February 11, 2015, 09:10:26 AM »
Whichever of Canon or Nikon makes the first DSLR with 3G/4G connectivity that allows photographers in the field (for newspapers, etc) to upload either directly to a cloud storage (e.g. Google Drive) or Instagram/twitter (with predefined tags) will make a killing - especially if the other is more than a couple of months without it.

Would easily fit into a 1DX size camera.
One can do that with 70D. Connect cell phone to 70D wifi and upload pic to facebook.

Is that driven by the camera or the phone?

If I think about what it means to be a photographer doing a live event (news, sports, etc), when I chimp on my camera afterwards, I want to select which photos get uploaded then and there.

Or maybe it goes from the camera straight to the 'net.

I don't want to have to use another device (i.e. phone) to review or use, so if the pairing can be created once and it is there ready to go- beautiful.

Of course part of that exercise means shooting at an image size appropriate for the destination. Or even sending a different size over WiFi to what is kept on card. An instagram or facebook post doesn't need a full 20MP image uploaded to it. A reduced in size 800x600 is likely a better choice and maybe 300k rather tham 3MB.

EOS Bodies / Re: DR from 5Ds will be 2 stop better then 7D mk II
« on: February 11, 2015, 08:20:10 AM »
If Chuck was talking about overall digital architecture in stating that the S is equivalent to the 3 since they're both 14 bit platforms, but that the the other spokesman was talking about sensor level noise, perhaps the raw files will have better flexibility in the shadows while still being equivalent from an overarching perspective.

I think this is the closest to the truth for now.

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