July 30, 2014, 03:05:24 AM

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 ... 433 434 [435] 436 437 ... 897
6511
I expect it's because 'economical primes' would generally be considered consumer lenses, and the trend seems to be that most consumers prefer zoom lenses.  There's a reason Canon updated both the 18-55 IS and 55-250 IS lenses to essentially unchanged MkII versions that are slightly cheaper to produce - those zoom lenses are their bread and butter.  The 60mm macro is Canon's only EF-S prime. 

There may also be a marketing component - FF cameras are more expensive than APS-C cameras, so by having pretty much all the primes compatible with FF cameras, that may lower the inertial barrier to current APS-C customers going FF.  Keep in mind that while a DX lens can be used with a Nikon FF body, the same is not true for EF-S lenses.

6512
You cannot edit that field, but it changes (automatically) with your post count - more posts means a 'better' camera. It's just a coincidence that my post count equates to a 1D X and I actually have a 1D X.   :P

6513
Thanks for translating that -- I don't speak marketing and my wife is away on vacation (she's fluent)

LOL.  Well, I suppose this doesn't preclude announcements of new products - the mention the '2013 lineup' so they could announce something to add to that lineup before CES.  But I'm not holding my breath...

6514
LAKE SUCCESS, N.Y., January 4, 2013 - At the Consumer Electronics Show (CES) in Las Vegas, January 8th, Canon U.S.A., Inc., a leader in digital imaging solutions, unveils the vision behind its 2013 lineup of connected digital cameras, camcorders and printers.

So...no new products, just some marketing mumbo-jumbo about stuff they're already selling.  Woo hoo.   ::)

6515
Canon General / Re: Single point auto focus
« on: January 04, 2013, 10:29:10 AM »
Single point or spot AF probably 90% of the time. What I'd like to know is how many actually change the focus point to compose their image rather than lock on with the center point and recompose. It sure seems a lot faster to me than having to tinker with moving points around.


Center point + recompose seems quicker and easier for my purposes.


Center point and recompose is certainly faster and easier...and if I'm shooting at f/5.6 with a reasonably distant subject, it's fine because the deeper DoF will mask the backfocus. 

But if you're shooting with a fast prime wide open, focus-recompose is a surefire way to get a backfocused shot.  Some relevant reading: Why Focus-Recompose Sucks.

Personally, I move the AF point around as needed.  I have the default points set off center, and I use orientation-linked AF point to speed things up.  The only time I use an automatic selection mode is in AI Servo for face tracking, where I've already manually selected the starting AF point.

6516
Lenses / Re: January 8, 2013 Announcements?
« on: January 04, 2013, 10:22:10 AM »
Not really. The 35L is just fine.
It is better if Canon fill the holes in their lineup, before upgrading an already great lens like the 35L.

I have to disagree.  Based on TDP's ISO 12233 charts, the new 35mm f/2 IS is sharper than the current 35L with both shot wide open, right out into the corners.   I'd like a refreshed 35/1.4L with improved optics (sharper than a lens that costs half as much would be nice), and weather sealing. 

As I've stated before, every L-series prime of 100mm and shorter has been updated or newly released in the last 6 years...every one except the 35L.  It's overdue...

6517
EOS Bodies / Re: Camera (Body Only) or Camera with Bundle Kit
« on: January 04, 2013, 10:13:43 AM »
what about Canon EF 24-105mm f/4? my photographer friend recommended this for me.

Yes, if you're getting a 6D or 5DIII (or older FF camera), but not for an APS-C camera like the 60D or T4i.  If you're going to spend that much on a general purpose zoom for APS-C, get the EF-S 17-55mm f/2.8 IS or EF-S 15-85mm f/3.5-5.6 IS - either of those will deliver better optical performance than the 24-105L when compared on the same APS-C body, and will actually be general purpose zoom lenses (the 24-105mm doesn't give you wide angle on APS-C).

6518
EOS Bodies - For Stills / Re: 5d3 and FoCal errors
« on: January 04, 2013, 09:59:55 AM »
I really don't think you can beat shooting pics of an angled yard stick when it comes to MA.

Well, you can't beat it...if you like bad results.  I think this sort of thing is the reason Canon says in their manuals that AMFA may cause problems - if done wrong, it sure can.  An angled yard stick can work, provided that's not what you're focusing on.  You may think you're focusing on the thin horizontal line by the number 18, but the AF system doesn't know that. The AF point is larger than it's little representative box in the VF, and it's going to lock onto the highest contrast subject at the right orientation under that point.  So, for your angled yardstick, that's most likely the edge of the yardstick itself, which is running at an angle through the DoF. 

Here's an example, where the focal plane is clearly different in the two shots, but as far as the AF system is concerned, both shots are correctly focused.



If you're going to use a DIY setup for AFMA, do it right - use a flat focus target oriented in the same plane as the image sensor, aligned and level, and if you use a yardstick, use it only to judge the DoF, not as the focus target.  There's a very good reason why all of the commercial solutions use a flat target perpendicular to the lens axis.  Here's a viable DIY setup that mimics the commercial tools. 


6519
Lenses / Re: Soon to be Launched EF 200-400 f/4L IS 1.4x
« on: January 04, 2013, 09:12:42 AM »
When shooting wildlife in open plains even the 600 falls short many times. So the 200-400 and 800 seem ideal to me. :)

Maybe if Canon releases an 800/5.6L IS II.  But I'll take the 600 II over the current 800.  With the 1.4xIII on the 600 II, the 840mm f/5.6 combo delivers better IQ than the current 800/5.6, plus the new 600+1.4x is lighter, and allows me to use all 61 AF points on my 1D X (the current 800/5.6 is a Group F lens, allowing only 47 of the 61 AF points to be used).  The 600 II + 2xIII is also optically better than the 800 + 1.4xIII.  Given that, I expect we'll see a new 800 II coming along pretty soon, because the 600 II seems to have made the current 800/5.6L IS obsolete. 

6520
EOS Bodies / Re: Canon Cannot Keep Screwing It's Customers Over
« on: January 04, 2013, 06:32:30 AM »
If you actually talk to Canon USA's internal folks (which I do because I take photography way too seriously as a hobby) you'll notice that they speak a lot more about marketing and economics. Whenever they talk about a product they are always talking from a market perspective.  "Q:Why don't you release a updated 1Dx with f/8 AF points, A: because people will buy our cameras regardless, we aren't going to implement a feature if it's not going to be a money maker".

Did you miss the fact that Canon added f/8 AF to the 1D X via a firmware update, just 4 months after the camera hit the streets?  How much money did Canon make from that firmware update?  So...either you made up that conversation, or you talked to some junior lackey with no clue about Canon's business operations.  "Hello, Canon 800-number operator, please put me through to the guy who washes the dishes in the commissary, I have important economic questions..."

Let's imagine that you purchased your 5D Mk. III at Canon's new markup and price slashing policy. That would mean you paid $3350 a few months ago and should sell it for $1300 in 5 years.

If you use historical pricing for the D700 as an indicator for the D800, then you'd pay $2700 for the body and sell it for $1700, as per the post release body pricing, and 5 year price based on the D700.

D800 cost of ownership = $1000
The 5D3 cost of ownership =$2050

Now, tell me how many Nikons you can own for the cost of ownership of 1 Canon over 5 years?

I'm an economic analyst....

The easiest way I can explain this is that this means that you just essentially paid $14,000 for your 5D Mark III...

So...if I buy a 5DIII, will it cost me $2,050 or $14,000?  As an economic analyst, do you often make predictions for the same indicator that vary by 683%?  Maybe you're the guy at S&P who made the $2 trillion mistake?  Actually, given the laughter that resulted from reading your error-ridden troll posts, I suspect you're not a real economic analyst at all, but rather a stand up comic.  Ba-dum-bum-ching.

6521
EOS Bodies / Re: Canon Cannot Keep Screwing It's Customers Over
« on: January 03, 2013, 11:23:14 PM »
The easiest way I can explain this is that this means that you just essentially paid $14,000 for your 5D Mark III, $4,000 for your 7D, $ 2,500 for your 60D, $7,000 for your 5D Mark II, and $9,000 for your 24-70mm Mk II etc.

What Canon has done is they have simply hidden the cost of ownership and made it so that you are essentially taking a long complex loan against yourself.

Clearly, I'm not an economic analyst. Maybe if I was one, I could comprehend how a 5DII that I paid for with $2400 in cash, used for two years, then sold for $1500 in cash, somehow cost me a hidden $7000 that I loaned to myself.  I think I'll stick to elucidating the biochemical workings of the human brain, economics is too confusing.   :o

6522
Software & Accessories / Re: Oddest kit purchase?
« on: January 03, 2013, 10:02:58 PM »
Nothing to fancy.  I use a $2 plastic gold-colored charger (the kind that goes under a dinner plate) as a reflector for macro shooting

On the flip side, I use a Lowepro belt with Sliplock water bottle holders and pouches on outings with the kids, even without camera gear along, and my Christmas tree wouldn't be completely decorated without the SpyderCube that I hang on it an an ornament.  ;)

6523
EOS Bodies - For Stills / Re: 5d3 and FoCal errors
« on: January 03, 2013, 07:07:12 PM »
How do you do the tests manually? Des this require one of the more advanced versions?

Possibly - I have the Pro version. 

6524
Pricewatch Deals / Re: EF 24-70 f/4L IS Available January 7, 2013
« on: January 03, 2013, 05:55:41 PM »
Who will be buying this?  :P


I'm definitely interested.  Waiting for reviews first, but I like the size/weight/flexibility for travel, walkaround, and it would probably be close to ideal as a single lens solution for my backpacking trips, too.  The buying decision for me will depend mostly on the optics.


first reviews... sharpness worse then 24-105mm f4.


http://i.imgur.com/FD4P3.jpg


That's some crazy schnitt!

Anyway, I'd wait for more reviews!


+1

...and LOL.  ;D

6525
EOS Bodies - For Stills / Re: 5d3 and FoCal errors
« on: January 03, 2013, 05:51:43 PM »
I did all of my 1D X calibrations with FoCal, the results were quite good (benchmarked against LensAlign for a couple of lenses, the 24-105L and 85L II, IIRC), and hold up with real world shooting.  But...I did the image capture myself, since there was no 1D X support at that point, and then when there was (when I was calibrating my new 600 II), I tried the Mac beta version for the first time, it didn't work (bug since fixed), so I shot that manually too. I used FoCal's manual mode.  To be honest, the fit calls by FoCal ranged from good down to poor, I suppose because I oversampled (83 shots per test), but visually, it was obvious from the curve what was the correct AFMA. I did have to eliminate a few obvious outliers (camera shake, presumably, from bumping the tripod). 

Given that there's no full auto for the 1D X, it's easier just to shoot the test shots manually (takes me ~10 minutes for the 83 shots, so testing a zoom lens at 4 focal lengths and 2 distances takes less than 1.5 hrs).  I have done some of the other tests tethered (multipoint focus, for example).

Pages: 1 ... 433 434 [435] 436 437 ... 897