December 22, 2014, 11:38:36 AM

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Messages - dilbert

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16
EOS Bodies / Re: Sony Sensors Coming to Canon DSLRs? [CR1]
« on: December 16, 2014, 09:00:18 AM »
Would Canon stop manufacturing sensors because they no longer used them in DSLRs?

Nowhere has Canon said that.

Does Canon have products that use sensors aside from DSLRs? Absolutely.

Did Canon say that they would use the best product available for their DSLRs? Yes.

The businessman from Canon that said that Canon would use the best sensors in their DSLRs said exactly the right thing.

Thus the gauntlet is thrown down at the feet of the Canon sensor division to deliver a sensor that performs as well as Sony's. if that part of Canon fails to deliver and the DSLR divison of Canon chooses to use a Sony sensor, who can fault Canon?

FWIW, it is also possible that Canon may deliver to Sony their own design (or a variation of Sony's) as have Nikon that allows the Nikon DSLRs to outperform the Sony ones when it comes to IQ.

17
EOS Bodies / Re: Sony Sensors Coming to Canon DSLRs? [CR1]
« on: December 15, 2014, 09:34:12 PM »
If Canon did this, DXO would implode from having no one left to pick on.

- A

They might have to start testing cameras rather than sensors.

Why would DxO want to test cameras? All they care about is sensor performance so that their software works well.

18
If you want to understand crop effect and how it works with depth of field, etc, get a lens that has a tripod mount (one of the big white ones), focus it with either an APS-C or FF camera on a subject, take your picture, change the camera over from APS-C to FF or FF to APS-C (do not move the lens/tripod) and take another photograph focused on exactly the same subject.

The best camera combination to do this with is a 20D/30D (APS-C) and 5D2/5D3 (FF).

19


Try metering side by side and see if what you say is true. I am getting a 1/3 to 2/3 stop light advantage with the 5D II and 1D IV.


 I've had a t1i, 7D, 5DII and 5DIII and if I take the same shot at exactly the same aperture, SS and ISO they will all be different by 1/3-2/3 stop.  Nothing to do with crop and everything to do with how the amplification in-camera is done and how they mark the ISO values.  In fact 7D was 2/3 stop darker than t1i at all ISO's above 100.  Ti1 ISO 100 was not a full stop darker than at 200 - only 1/3 stop, so that was a little weird. 

Maybe I'm just cynical, but I figured Canon did that so that when tested at a particular ISO the 7D would look better than the rebels and previous  15MP 'older' and people would think the sensor was better (I think that actually happened too).  Of course no-one noticed that the testers had to use a lower SS by 1/3-2/3 stop.   OF course if you actually shot at the same exposure the results were essentially identical.

If you look on DxO's website (and also on sensorgen.info) then you will find the truth about ISO sensitivity and numbers for each camera that they test. Very rarely does "ISO 100" on your camera actually measure up to what ISO 100 should be.

20
If you're confused about the crop effect, maybe this will help.

If you put a 300mm lens on a 20D (8MP) then the image you take is going to be almost exactly the same as if you put that lens on a 5D Mark II (21MP) or 5D Mark III (22MP), had the same subject center of frame and cropped the resulting image.

This will even be true for depth of field.

21
How do you sell a picture for so much?

Having sold other pictures for a lot of money, even if not as much.

What he's selling is his brand as much as the picture. It takes a lot of marketing to achieve that.

You can't convince someone to pay $1million for a first up photo you've made a print of, but if you've sold prints for $100s of thousands before then $1million isn't such a big ask. And so on.

If you want to sell a $1 million photo today then start selling $100 photos today and at some point in the future, do more limited runs of photos for $1000s and so on until you're doing 1 of's for $millions.

It's not just the picture he sold but also his name and a name brand that he has built up over time and convinced people that he is worth it.

But as I pointed out above, according to the source, he has sold prints for $150 million (until 2011), do you find this credible?

It's hard to say. At $1 million per print, that's only 150. All of the real prints on his web site are "request a quote."

Large prints aren't cheap, especially after you add in framing costs.

22
How do you sell a picture for so much?

Having sold other pictures for a lot of money, even if not as much.

What he's selling is his brand as much as the picture. It takes a lot of marketing to achieve that.

You can't convince someone to pay $1million for a first up photo you've made a print of, but if you've sold prints for $100s of thousands before then $1million isn't such a big ask. And so on.

If you want to sell a $1 million photo today then start selling $100 photos today and at some point in the future, do more limited runs of photos for $1000s and so on until you're doing 1 of's for $millions.

It's not just the picture he sold but also his name and a name brand that he has built up over time and convinced people that he is worth it.

23
Reviews / dpreview: Heavy Hitters: 2014 High-end Full-Frame Camera Roundup
« on: December 11, 2014, 05:24:46 AM »
http://www.dpreview.com/articles/7947009894/high-end-full-frame-roundup/14

We recommend: Nikon D750

All things considered, even though we're not quite done testing it, the D750 may be the best DSLR we've ever used.

24
EOS Bodies / Re: Canon 5D mkIV
« on: December 11, 2014, 04:25:16 AM »
Take the 5D3, put 7D2's 65-pt all cross focus system, 150k meter (this one is optional), 36MP Exmor sensor and you can shut up and take my money!
+1 mine too
+1

25
EOS Bodies / Re: Canon 5D mkIV
« on: December 10, 2014, 10:02:38 PM »
I´m no product engineer nor developer, but I´m around these, and I would not believe to the fact that there is very well working device which will be in production only after 7 months. Doesn´t work like that these days. Too slow. "There ain´t no Canon 5D Mark IV", or it will propably be sooner.

You're ignorant of how long the lead time is for Canon's cameras.

When the C300 came out, Canon mentioned that it was the fastest digital camera production that they had done.

The desire for this camera was born by' the 5D Mark II, so I'd estimate that the C300 was a 2 to 2.5 year project.

And that's a "fast" project.

26
Third Party Manufacturers / Re: Reviewing Olympus 40-150/2.8
« on: December 10, 2014, 07:28:46 AM »
Reading elsewhere, does the E-M1 have a base ISO of 200?

http://sensorgen.info/OlympusOM-D-E-M1.html

27
Lenses / Re: Are macro lenses essential for jewelry shooting?
« on: December 10, 2014, 12:04:15 AM »
Preface: I've worked at a major jewelry and gemstone retailer, specifically in product imaging.

We exclusively use macros for all gemstone shots and usually use macros for all other purposes, occasionally using the TS-90 for necklaces and similarly large pieces.
...

Yes, when photographing jewellry a TS lens can be very handy. Wasn't sure anyone would pick up on that :)

28
EOS Bodies / Re: A new high end camera
« on: December 09, 2014, 03:14:52 PM »
In everyone's opinion, what are the chances of a high end 1DX mark II or another top of the line DSLR being available next year?  The reason why I ask is because I am close to spending $4,000 on the new 5K iMac if a new camera won't be available until 2016.  However, if we are talking early to mid 2015, then I might hold off on a new computer so I can get the camera instead.     

There's a 100% chance that the 1DX or 5D3 will be updated next year.

If Dilbert is wrong, he will refund in double the consulting fee you paid him.

1Dx is strongly positioned vs the D4s.  Unless Canon wants to leap frog Nikon, I don't expect to see an update.  If Nikon introduces a D5 then perhaps, though Canon seems to be slow to introduce new items recently.  I think the got badly burnt when the rushed the 1D M3 to market with autofocus issues.

Any 1DX2 or 5D4 or D5 will already be in R&D and working its way through testing, etc. Canon won't bring to market a 1DX2 in September '15 because Nikon does a D5 in March '15. The product development and release trains will already be in motion with decisions already made about what and when.

29
Third Party Manufacturers / Reviewing Olympus 40-150/2.8
« on: December 09, 2014, 07:40:35 AM »
http://www.luminous-landscape.com/essays/lenses/the_olympus_40___150mm_lens.shtml

Yup, I know, it isn't a Canon review or a lens that will fit on Canon but the review is worth reading as both the reviewer and site owner are willing to experiment with new equipment, even if it means not getting the shot, e.g. from the review:

Last year Michael used the Olympus E-M1 in Antarctica and missed some crucial images because he was using 4/3 lenses that did not use the Dual Phase-Contrast auto focus.  By the time the lens focused, the shot was gone.  This was most noticeable when shooting a whale breaching against a dark ocean background.  I am convinced with the 40-150mm and 12-40mm Olympus Pro Lenses that this kind of shot won’t be missed this year when I take this gear to Antarctica.

... it is reviews like this where you find people talking about the bleeding edge of photography - included what blood was drawn!

But you've got to wonder, what would a EF 80-300/2.8 look like?
and how big would it be, etc?

30
EOS Bodies / Re: A new high end camera
« on: December 08, 2014, 11:01:39 PM »
In everyone's opinion, what are the chances of a high end 1DX mark II or another top of the line DSLR being available next year?  The reason why I ask is because I am close to spending $4,000 on the new 5K iMac if a new camera won't be available until 2016.  However, if we are talking early to mid 2015, then I might hold off on a new computer so I can get the camera instead.     

There's a 100% chance that the 1DX or 5D3 will be updated next year.

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