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Messages - Ellen Schmidtee

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301
Lenses / Re: Canon EF 14-24 f/2.8L [CR2]
« on: June 16, 2012, 02:24:22 AM »
You forgot to post the obligatory $1900 price tag :(

This sounds like a very good FF lens and a wicked crop-body lens . . . seriously though, if we're super lucky it'll be $1400

Considering Canon isn't shy sticking high prices on new lenses, and that the Nikkor 14-24mm f/2.8 is priced at $2000, I think it's safe to assume an EF 14-24mm f/2.8 L would cost as much.

Actually, I think that if Canon priced the EF 14-24mm f/2.8 L much lower than the Nikkor, people will suspect it must be optically or otherwise much inferior to the Nikkor.

302
Couldn't Canon make a mirrorless camera with EF mount and a shorter flange distance?

Lenses for the mirrorless camera would not focus on other cameras with EF mount, so some special designation like EF-ML would be required, but regular EF & EF-S lenses would mount using an extension tube with contacts.
But why make it EF mount at all then, since an EF adapter is basically just an extension tube. I mean, look at the patent, it's an extension tube with electrical contacts



The only reason to make it EF mount would be so people could use EF lenses right away with no adapter...once you add anything between the lens and the camera, you might as well optimize it for the target market (in this case, small camera with small flange distance). If the EF-ML lenses don't work on DSLR's anyway, there is no reason to build them around an existing idea, especially if something completely new is simpler and smaller

If the mirrorless camera uses EF mount with the same flange distance, the camera would necessarily be bigger (at least thicker), and it would be harder to design ultra wide lenses for it.

If the mirrorless camera doesn't use the EF mount at all, Canon would have to quickly release a big set of lenses, or the camera would be of limited interest.

Canon can choose an existing bayonet, say Sony E-mount, but then (a) owners could buy non-EF lenses, which is not as profitable to Canon, and (b) the camera wouldn't be as attractive to existing EF lens owners.

Furthermore, lenses with larger focal lengthes and/or max apertures wouldn't be any smaller, similar to the situation with crop bodies & EF-S lenses, so there isn't much sense in designing & manufacturing new models, when it's possible to use existing EF lenses with a simple adapter.

303
Couldn't Canon make a mirrorless camera with EF mount and a shorter flange distance?

Lenses for the mirrorless camera would not focus on other cameras with EF mount, so some special designation like EF-ML would be required, but regular EF & EF-S lenses would mount using an extension tube with contacts.

304
Third Party Manufacturers / Re: So Nikon D600 is real after all
« on: June 14, 2012, 04:46:00 AM »
Does look pretty sweet, its even got a top panel LCD. Reading the spec list, it's also meant to have weather sealing!? How are they pulling it off? obviously it won't be top notch weather sealing, maybe a bit behind or equal to a 7D but the whole package is looking very appealing to me as I'v wanted FF for ages and was going to settle on a 5Dmkii and put up with the AF. Hmmmmmm...... I could deal with shooting Nikon and Canon.

They could be losing money on it and recouping it with fx lenses sold. Just one hypothesis I guess. I mean, it would be a good way to get people to buy into their system. I am interested for one.

Seems reasonable to me.

I've had my eye on the Nikkor 14-24mm f/2.8 for a while, and it seems like Canon is not going to release a similar EF lens. I'm having a savings account open next year with more than enough money for the 14-24mm, so if the D600 is what the rumors make it (spec wise, and on the low price-wise for an FF camera), I'll be buying a D600 w/ Nikkor 14-24mm f/2.8

Once I have both a 5Dmk2 & a D600, why stick with EF lenses? Whichever bayonet has the better deal has my cash.

305
EOS Bodies / Re: 4 More DSLRs Coming in 2012? [CR2]
« on: June 13, 2012, 03:11:50 AM »
I think this rumor is CR2 because it's pretty easy to assume 4 DSLRs from Canon this year.

Considering Canon's delays in shipping announced products and the just announced 650D, I think four new DSLRs this year is a flight of imagination.

306
EOS Bodies / Re: APS-C Roadmap for 2012: A Prediction
« on: June 12, 2012, 08:25:14 AM »
I too find it extraordinary that this new sensor apparently makes no contribution to image capture IQ -- it appears to be more about hybrid AF. We have postulated all along that in order for it to appear "new" Canon would need to either bump the MP count or engage in a marketing thrust to re-educate the public as to why the new one is better.  So far, the low noise marketing is aimed Digic 5 in-camera jpg processing which may very well be the (stills) target audience for this camera.  So they are touting low noise in ways that most entry level photographers wont really know how to take advantage of, but will be thrilled to know it is there. 

My impression is a large portion of xxxD owners use it as "P&S-on-steroids" w/ one or two lenses, so -

1. Autofocus in video would be a big benefit for them.

2. Improved JPEGs would be a big benefit for them, especially as many of them don't process raw at all.

I did a beginner's photography course that included 13 six hours meeting, split into 2 hours of photoshop, 2 hours with a studio photographer teaching the technical side of photography, and 2 hours with an art professor. Raw wasn'nt even mentioned.

3. I think - naively? - that xxxD body owners can be educated about photography, in terms of print size, ability to crop, and distance to subject. No insult intended, the average xxxD owner isn't shooting lions in a safari for national geographics.

307
Lenses / Re: Canon 24-70mm f/2.8 II Shipping Date?
« on: June 12, 2012, 06:06:08 AM »
http://www.scoop.co.nz/stories/BU1104/S00088/canon-outlines-impact-of-japanese-earthquake-and-tsunami.htm

1) A year+ should be enough time to move the production of items such as grips & GPS units elsewhere. Surely there are Chinese factories that can make grips.

2) If Canon is having problems supplying announced items, it might be wise avoid compounding the problem by announcing more items it might be unable to supply, say the EF 40mm f/2.8 STM & EF-S 18-135 f/3.5-5.6 IS STM.

308
Lenses / Re: Canon EF 40mm f/2.8 STM Information.
« on: June 12, 2012, 12:26:35 AM »
I fancy sticking it on the 1D4/1Ds3 as it will make them innocuous

Then try taking it with you 'on the tube' - saw this recently on a camera website - seems UK has become decidedly DSLR unfriendly.....unfortunately

There isn't a place in Israel I wasn't told by security guards in the entrance that photography is forbidden within the premises - train stations, central bus stations, banks, malls, book shops, supermarkets, etc. Those prohibitions are often the initiative of security people, e.g. the train spokesman was asked about the non-existing prohibition so often, a written statement was issued that photography in train stations is actually permitted.

I've found out the hard way that one Israeli movie theater has a 'no cameras within the premises' policy, enforced by two armed security guards standing in the entrance. Not 60 seconds have passed before the resident lawyer was dispatched to offer me to have the camera kept in the theater's safe until I left the building.

[All movie theaters must have security guards at the entrance due to an order issued by the British military governor, which was never cancelled. Now the guards not only protect the audience from terrorists threat, but the movie from copyright infringement threat as well.]

309
EOS Bodies / Re: Is Canon at a Crossroads?
« on: June 10, 2012, 10:38:28 AM »
STM is a new feature available on EF bayonet lenses, so I think that's a counter-example to 'Canon is at a crossroad'.

Canon has released several new EF lenses over the last few years, a few of them being special and/or expensive, e.g. the 8-15mm f/4 L, TS-E 17mm & 24mm mark II, and the announced 200-400mm f/4 L w/ built in tele-extender, and cameras such as the 5Dmk3 & 1Dx.

I think this sends a message that Canon plans the EOS line to continue for many more years.

As for replacing the EOS system, unless Canon finds some way to keep the value of EF lenses (say a perfect adapter to the new bayonet), I agree with pwp that would be very damaging to Canon.

310
Quote
The D800 has 14 bits A/D converters, so how could it have more than 14 bits of dynamic range?

A JPEG file is 8-bit, but that doesn't mean that the maximum scene dynamic range it can encode is only 8 stops, correct?

I'm not so sure.

Think about printing greyscale images with only pure black ink. So you basically have only two colors pure white and pure black, one stop DR only? And it is possible to print a fine greyscale image if the resolution is fine enough. The technique is some kind old.

OK, I'll try to be more explicit.

As far as I understand, the photosites measure the amount of light falling on them, and the A/D converter turns the analog energy measurement into a number, and those two stage are linear. Therefore, no matter how many shades of gray are there between 2^14 and 2^13, those two shades are one stop apart.

Do I misunderstand?

311
Quote
The D800 has 14 bits A/D converters, so how could it have more than 14 bits of dynamic range?

A JPEG file is 8-bit, but that doesn't mean that the maximum scene dynamic range it can encode is only 8 stops, correct?

I'm not so sure.

312
Lenses / Re: Canon EF 40mm f/2.8 STM Information.
« on: June 09, 2012, 04:55:12 AM »
Some of you people really need to look at this lens as a whole and stop focusing on the fact that it's "only f/2.8." Sure, the 50 1.8 II is a whole 1 1/3 stop faster. Awesome. But how practical is it really to be shooting with such a shallow DoF all the time?

Wide aperture isn't all about shallow DoF, it's also about low light.

I understood the comment to mean

'shooting in low light, wide open means that you have the downside of a shallow DOF'

Well, shallow DOF isn't necessarily a downside, and if one stands sufficiently far, hyperfocal distance can give a very big depth of field.

I was in a band show the day before yesterday, and there was a raised platform at the back of the hall about 3-4m high. Standing there with a 24mm f/1.4 L at f/2 (hyperfocal distance 9.62m), I could get a wide shot of the band & audience dancing all in focus. Maybe I could even get the shot standing on one of the chairs next to the bar at the back.

Not making money from my photography equipment, and not being rich enough to buy all L, I buy primes elsewhere. So far I bought 4 primes by Sigma & Samyang, the one relevant to this discussion being the 35mm f/1.4. If the Samyang 24mm f/1.4 was as good, it would be my next lens.

313
Dynamic Range - 14.4 

The D800 has 14 bits A/D converters, so how could it have more than 14 bits of dynamic range?

314
Lenses / Re: Canon EF 40mm f/2.8 STM Information.
« on: June 09, 2012, 12:48:37 AM »
Some of you people really need to look at this lens as a whole and stop focusing on the fact that it's "only f/2.8." Sure, the 50 1.8 II is a whole 1 1/3 stop faster. Awesome. But how practical is it really to be shooting with such a shallow DoF all the time?

Wide aperture isn't all about shallow DoF, it's also about low light.

315
Lenses / Re: Canon EF 40mm f/2.8 STM Information.
« on: June 08, 2012, 03:37:27 AM »
Forgive my ignorance, but what's special about this? It's only 10mm wider than the 50 and a stop slower.  :-\

Three things better than 50mm 1.8:
-  Full time manual focus
- Quiet autofocus
- 7 circular blades =  great bokeh!

This will be my first pre-order of any canon

If Canon upgraded the 35mm f/2 to include those three things, it would have been my first pre-order as well.

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