September 23, 2014, 06:56:44 PM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - neuroanatomist

Pages: [1] 2 3 ... 955
1
EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: Today at 03:26:48 PM »
Incorrect, they will buy a body for the lenses and flash units they already have (even if it is only a few).

I disagree.  The Rebel kit lens adds $50 to the price, and notice how Canon "updates" the 18-55 lens quite frequently (even though those updates are often insignificant as far as lens performance, it sounds new).  The typical consumer doesn't buy an external flash (why? the camera has one!), and doesn't buy more lenses than came with the body. 

But in fact, neither of us have data on buying habits of young or first-time dSLR buyers vs. people already owning other system components or other brands.  But you know who does have those data?  Canon, Nikon, Sony, etc., who collect that info, along with demographic data, salaries, occupations, etc., every time someone registers a new purchase.  History has shown Canon to be quite adept at catering to their market.


Right now Canon are living off past glories, but unless they get off their backsides all their glory will be in the past.

YAPODFC  ::)

2
EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: Today at 02:45:08 PM »

That doesn't match my experience with actual photos.  It's not just what is "user-selectable" but what photos I can use with those settings.  When talking about actual usable photos, I've seen approximately one stop gain with each generation of camera.  The 5D2 gave me one stop over the 5D.  The 5D3 gave me one stop over the 5D2.  So that's two stops gain in going from the 5D to the 5D3.  The 6D gives me just a little more than the 5D3. 

Well that is where you are going wrong zlatko, we don't allow actual empirical results to affect our opinions here, we have sensor readings and maths to tell us better what we should be able to see. /sarcasm

Shots with all of those cameras taken with the lens cap on then pushed 5 stops in post aren't significantly different, although the 6D might show a very marginal improvement.  DxO Scores have not gone up much at all.  Any perceived improvement in actual pictures is subjective and irrelevant. 

 ::) ::) ::)

3
At least they fixed their previous mistake in saying the 7DII has AF point-linked spot metering.

4
The 5D3 covers everything but USB 3, but is now 2.5 years old and way too expensive. 

So, looking at my choices, I basically want the 5D4 for less than $2k  :P

In my humble opinion, the 7D2 should have had much better image quality.  If it was closer to the 5D3, I would have pre-ordered it.

The 5DIV won't be less than $2K, nor less than $3K at launch.

Get a USB3 card reader.

Probably unrealistic to expect APS-C IQ to approach FF.  If you want FF IQ, you compromise on other features...or pay more.   :(

5
Canon General / Re: Gets the Job Done....Every Time
« on: Today at 09:39:02 AM »
...those people who believe that a system they like must be not only the best system but the best system for other people.

Such as Nikon missionaries journeying here to the land of Canoon to proselytize the joys of the Holy Exmor to the ignorant heathens...   ::)

6
Do you see the artifact when you capture the LV image first after the camera has been off for a while?  The issue might not be light, but heat.  It looks like 'amp glow' but that's usually in a corner. 

Have you tried contacting the company that did the spectrum conversion (assuming you didn't DIY)?

7
EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: Today at 08:49:28 AM »
What they overlook is the fact that interchangeable lens cameras are part of a gear commitment, which means that once someone has a certain level of investment in  gear for a particular body, they are less inclined to upgrade to a different manufacturer.

If you want to know where the sales are heading, look at the figures for young buyers, or those who are buying their first camera. Those are the customers who are going to be locked into the manufacturer systems they bought into when they expand their gear set. My guess is that the profile of sales in that demographic is quite different to overall sales.

Bluntly put, the impact of innovation in cameras today are going to show their effect on sales in 10 or 15 years from now. Canon may sell more now, but that is a result of the cameras they produced a decade ago, not the result of what they are producing now.

What you overlook is that the majority of dSLR buyers buy the camera with 1-2 kit lenses, maybe a cheap 50/1.8, and they're done.  The people who are 'locked in' and who 'expand their gear set' are a relatively small minority.  That's evident from Canon's milestones of number of bodies vs. lenses produced. 

Bluntly put, most of those young buyers and those buying their first camera will not buy another camera, nor any more lenses, for several years if at all.  If/when they do, there's a good chance it'll be the same brand, not because of 'lock in' due to lenses/flashes/etc., but due to familiarity. 

8
EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: Today at 06:26:11 AM »
You can certainly talk the talk, but after all this typing and in put from others I don't see this can continue until you post the full, original image as many of us have requested. Mask the faces if necessary as suggested by PBD. You've made all sorts of allegations against the 5DIII not coping with the situation: let's see the full picture.

What, and risk having his claims invalidated?  Why would he do that?   ::)

9
EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: September 22, 2014, 11:50:56 PM »
But I'm sure if back then a new film came out with higher DR and *no* other disadvantages, that he'd have said 'nah, I'll just use the old film and work around the limitations.'

Please do let me know when I can pop a roll of Exmor 'film' into my Canon camera, so I can have great AF with my handholdable 600mm f/4 lens, use my radio controlled flash system, etc. 

10
EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: September 22, 2014, 11:06:24 PM »
My *point* is that I wouldn't have had to with a good sensor.

Huh? Who set that standard?

11
EOS Bodies / Re: Sample Images From the EOS 7D Mark II
« on: September 22, 2014, 06:38:32 PM »
Neuro
I own an 800 lens & 5D iii. I  shoot paranoid birds in the west with a 1.4 iii tele 80% of the time. I also blow up large prints all the time. Are you saying that for my shooting I might get a better print at 1280 mm with a 7D ii in good light vs 1120 with a 1.4 converter! That would be insane if its true. Think of the auto focus capture rate shooting a 800 naked. Think of all those af points. Don't get me too excited here. I might faint.

If you need to crop your images to smaller than the APS-C FoV, in good light you'd have an advantage with the 7DII behind your 800+1.4x combo.

12
EOS Bodies / Re: Am I the only one excited about the new 7D mk2?
« on: September 22, 2014, 05:21:36 PM »
Canon may have jumped the shark.

LOLz at YAPODFC.    ::)

13
I agree. I was so ready to buy it and then i come to know that even though the 1DX AF system came in, the exposure system did not!

So focus point based spot exposure :(

Yeah, and that's pure marketeering on Canon's part.  Although there may have been technical reasons for the 5DIII not having AF point-linked spot metering, there's no reason the 7DII can't have it...other than Canon reserving that feature for the 1-series bodies.

14
EOS Bodies / Re: Am I the only one excited about the new 7D mk2?
« on: September 22, 2014, 03:26:00 PM »
They are all cross type, however Canon throttles AF speed at f/5.6 relative to f/4 or f/2.8. Even on the 61pt system, even when using only the center points, AF speed slows when I slap on a 1.4x TC onto my 600/4, vs. just using the 600/4. Additionally, at f/5.6, the chances of "hunting" increase. Canon's AF system caters towards looking for a closer subject first when the scene is out of focus by more than a certain (unspecified) amount. So, if I need to photograph a bird in flight, it's FAR better to use an f/4 lens, which is likely to lock on directly immediately, than f/5.6, which is going to hunt forward first if I'm not already close to focus on the bird.

Maybe the 65pt system changes that, but it looks like the same general firmware as the 5D III and 1D X, so I suspect it'll behave the same.

No, Canon does not throttle AF speed at f/5.6 relative to f/4 or f/2.8.  Yes, when you put the 1.4x TC behind your 600/4, AF slows down.  But that's not because the combo is f/5.6, it's because of the TC.  By design (firmware), a 1.4x TC drops AF speed by 50%, and a 2x TC drops it by 75%.  If you put the 1.4x behind the 200mm f/2, you'll have a 280mm f/2.8 lens that activates all 61 AF points including the 5 dual-cross points on the 5DIII/1D X...and still focuses 50% slower. 

The 'hunting' you describe also appears to not be specific to the max aperture or the AF points, but rather to lens or TC combo.  For example, the 100-400L @ 400/5.6 hunts with a busy background, whereas the 400/5.6L locks on much more effectively in that scenario.

Hmm, curious. When I rent the 300 f/2.8 II, and use the 1.4x TC, it still seems to focus extremely fast. Faster than the 600/4 with the same TC.

Maybe it's just the design of the 100-400, but that lens doesn't focus fast, period, as far as I can tell. I haven't used the 400/5.6 with the 61pt system, so I can't speak to it.

The 300/2.8 II is arguably Canon's fastest-focusing lens.  The focusing group in the 600/4 II is ~25% more massive than that in the 300/2.8 II.  The bare 300 II focuses faster than the bare 600 II, so the former will be faster with the same TC.  I suspect the 300/2.8 II is just so fast to begin with that you don't notice the AF speed reduction as much.

Here's the relevant bit from Canon:

Quote from: Canon DLC
As with previous EF Extenders, usage of Series III EF Extenders lowers AF drive speed to improve AF performance. When Extender EF 1.4X III is used, AF drive speed is reduced by 50%. When Extender EF 2X III is used, AF drive speed is reduced by 75%. This may seem like a drawback, but in reality subject tracking performance remains quite high when Series III Extenders are used with IS II lenses. This is due to improvements in AF precision made possible by the new microcomputer in the extenders.

The 100-400L focuses noticeably slower than the 400/5.6, as well, even though both are 400mm f/5.6.

15
EOS Bodies / Re: Am I the only one excited about the new 7D mk2?
« on: September 22, 2014, 02:22:19 PM »
They are all cross type, however Canon throttles AF speed at f/5.6 relative to f/4 or f/2.8. Even on the 61pt system, even when using only the center points, AF speed slows when I slap on a 1.4x TC onto my 600/4, vs. just using the 600/4. Additionally, at f/5.6, the chances of "hunting" increase. Canon's AF system caters towards looking for a closer subject first when the scene is out of focus by more than a certain (unspecified) amount. So, if I need to photograph a bird in flight, it's FAR better to use an f/4 lens, which is likely to lock on directly immediately, than f/5.6, which is going to hunt forward first if I'm not already close to focus on the bird.

Maybe the 65pt system changes that, but it looks like the same general firmware as the 5D III and 1D X, so I suspect it'll behave the same.

No, Canon does not throttle AF speed at f/5.6 relative to f/4 or f/2.8.  Yes, when you put the 1.4x TC behind your 600/4, AF slows down.  But that's not because the combo is f/5.6, it's because of the TC.  By design (firmware), a 1.4x TC drops AF speed by 50%, and a 2x TC drops it by 75%.  If you put the 1.4x behind the 200mm f/2, you'll have a 280mm f/2.8 lens that activates all 61 AF points including the 5 dual-cross points on the 5DIII/1D X...and still focuses 50% slower. 

The 'hunting' you describe also appears to not be specific to the max aperture or the AF points, but rather to lens or TC combo.  For example, the 100-400L @ 400/5.6 hunts with a busy background, whereas the 400/5.6L locks on much more effectively in that scenario. 

Pages: [1] 2 3 ... 955