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Messages - neuroanatomist

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7816
Lenses / Re: First Portrait Lens, Need Suggestions
« on: October 09, 2012, 09:26:51 AM »
seriously have a look at the sigma 85 f1.4
at f2 to f2.8 it is super sharp, blows away even the 70-200 mk2

"Blows away"?  Wombat, you been smoking powdered KR rolled in DxOMark papers again?   ::)

I'd say the Sigma 85/1.4 at f/2.8-4 is pretty similar to the 70-200 II at similar apertures, sharper in the center, not as sharp away from the center. 

Still, 'similar to the 70-200 II' is high praise for any lens, especially one costing what the Sigma 85/1.4 costs.  Definitely worth a look...

7817
EOS Bodies - For Stills / Re: 650D Results on DxOMark
« on: October 09, 2012, 09:14:33 AM »
Where do you actually pull these numbers from?


Oh wait, you wanted an answer that has actual real-world meaning, and not a DxOMark Score?   :P 

See this linked thread for the data (and supporting links).

For myself, I'll take DxO's essentially objective and quantitative results over random individuals' perception of reality any day.


And yet, here you give us your random perception of reality:

Nikon, Sony  are increasing their shares while  Canon goes back.


And real reality shows a different picture than your reality.  See the linked thread above for the numbers.

7818
EOS Bodies - For Stills / Re: 650D Results on DxOMark
« on: October 09, 2012, 09:14:21 AM »
... but at some point people should open their eyes to the fact that Nikon has basically dominated Canon for the past few releases.
...but for the rest of the world, it's pretty obvious Nikon is killing them.

Dominating and killing them how, exactly?  By losing dSLR market share to Canon for several years?  By consistently selling fewer dSLRs and lenses than Canon, year after year, for the past several years?

Canon sells cameras, not sensors, and they sell more of them than Nikon.

Where do you actually pull these numbers from?

I'm basing my conclusions on DxOMark's Market Share Score.  The score is accurately measured, then normalized to the area of an average dSLR production factory floor, and the normalization results in Canon annual earnings that exceed the GDP of Japan.  While DxOMark's Overall and Landscape Sensor Scores are based on flawed analytical methods, their Market Share Score is fine, because it shows Canon is better.

7819
Canon General / DxOMark vs. Reality
« on: October 09, 2012, 09:13:17 AM »
There are lots of posts about DxOMark, lots of support, lots of bashing, some of it fact-based, much of it hearsay and knee-jerk reaction.  There are many posts about sales figures, generally fewer than about DxOMark, and generally with even less of them with real facts.

So...let's do a little reality check, about the past 5 years in DxOMark-land and the past 5 years in the real world.

The year is 2007.  Nikon has the D3 as a flagship and the D300 as the prosumer APS-C body.  Canon has the 1DsIII and D40, respectively.  DxOMark scores the D3 as 81, the 1DsIII as 80 - a meaningless difference, by their standards.  The D300 scores a 67, while the 40D scores a 64 - that is starting to look like a real difference. 

2008 saw Nikon enter the 'affordable' FF market with the D700, which DxOMark scores an insignificant 1 point higher than Canon's 5DII at 80 vs. 79.  2009 had updates to the high-end prosumer APS-C segment, and Nikon's D300S scores a 70, while Canon's 7D scores a 66.  2010 brought us mid-range APS-C updates, and while the 60D with the 7D's sensor scores a 66, the D7000 scores an 80, beating Canon's then-current FF sensors.

This year, the somewhat-less-affordable FF battle continues, with the 5DIII scoring 81, barely better than it's predecessor, while the D800/E scores a very impressive 95/96, soundly beating all Canon cameras as well as every other sensor DxOMark has ever tested, including medium format bodies with sensors with 2.5-times larger sensors.

So, it seems quite clear that over the past 5 years in DxOMark-land, Nikon has been dramatically improving, Canon has been stagnating, and Nikon is way ahead.  But that's DxOMark-land.  What about the real world?

Canon and Nikon are publicly traded companies, and as such, they publish their annual and quarterly reports (in the Investor Relations sections of their corporate websites).  IDC (a market analysis firm) also publishes annual summaries of the market as a whole.

In 2007, Canon had 43% of the dSLR market, Nikon had 40%.  In 2010, Canon had 44.5% of the dSLR market, Nikon had 29.8%.  So, over years while Nikon was bringing us better sensors than Canon, Nikon was losing market share while Canon was gaining it.  Ok, fine, but that's 2010.  What about this year?

In 2Q2012 (by calendar year, they report it as 1QFY2013), Nikon had an 18% y/y growth of unit sales of dSLRs and lenses.  In 2Q2012, (they report by CY, not FY), Canon had a 47% y/y growth of unit sales of dSLRs and lenses.

So, DxOMark has said Nikon has had better sensors for years, and the sales data show that Canon has sold more dSLRs and lenses for those same years, and continues to do so, as of the most recent data available.  The straightforward conclusion from the above is that while DxOMark's Scores have a huge impact on the number of inflammatory posts on Internet discussion boards, they have no meaningful impact on the real world aggregate buying decisions of consumers.

7820
EOS Bodies / Re: Canon EOS 7D Mark II Rumors Surface [CR1]
« on: October 08, 2012, 10:58:18 PM »
Gotta keep the two processors.  It's the secret to the focusing performance...

Really?  How do the dual Digic 4 processors in the 7D contribute to focusing performance?  Or is the secret that Canon is lying when they state, "The EOS 7D has a 19-point autofocus system, all of which are cross-type points, that includes a separate AF processor to help to provide fast, reliable and accurate autofocus for photographers in all shooting situations."

7821
EOS Bodies - For Stills / Re: 650D Results on DxOMark
« on: October 08, 2012, 10:53:53 PM »
... but at some point people should open their eyes to the fact that Nikon has basically dominated Canon for the past few releases.
...but for the rest of the world, it's pretty obvious Nikon is killing them.

Dominating and killing them how, exactly?  By losing dSLR market share to Canon for several years?  By consistently selling fewer dSLRs and lenses than Canon, year after year, for the past several years?

Canon sells cameras, not sensors, and they sell more of them than Nikon.

7822
Lenses / Re: 24-70 II or 70-200 II
« on: October 08, 2012, 10:47:10 PM »
Indoors on 5D3? In my head 24-70 wins hands down unless you live in a palace with 100 ft long rooms :)



^^ Indoor shot with the 600mm f/4L IS II on FF.  I don't live in a palace...   :P

I am sure you got great shots. I hear it is a great lens. Could you post some photographs? We're you shooting at the 70mm end?

Below are a couple of indoor shots with the 5DII and 70-200 II, the first at 115mm, the second at 200mm.  But I do agree than generally, the 24-70mm would be more useful indoors.  Of my indoor shots with the 70-200mm, many are at 70mm.

7823
Lenses / Re: Upgrading and looking for lens advice.
« on: October 08, 2012, 09:44:21 PM »
I would, yes. I have both, in fact. 35L as a nighttime walkaround lens, mostly.

7824
Lenses / Re: Upgrading and looking for lens advice.
« on: October 08, 2012, 08:51:31 PM »
Sounds like a good plan to me...

7825
Software & Accessories / Re: Head for Manfrotto 055xprob
« on: October 08, 2012, 08:50:00 PM »
Agreed. My point is that the AS quick release system is sturdier than Manfrotto's offerings, with no play between clamp and plate.  Manfrotto's plates are the weak point in their otherwise very robust midrange products.

Also, as a previous poster pointed out, with the 488/498, there's a bit of sag after you tighten the ball (this occurs even with normal/wide lenses).  Can't speak for the 055 (but I have a Manfrotto 468MG - no sag there). 

But the OP wants a head for indoor real estate - so presumably he will be using 14mm or 16-35mm lenses and not telephoto, so a good sturdy ball head with quick-release plates would be better for moving tripod + camera from room to room, as well as upstairs/downstairs.

You just described the Really Right Stuff BH-40....

+1

7826
EOS Bodies / Re: 46mp sensor useless for landscape?
« on: October 08, 2012, 08:06:12 PM »
I could never go back to using anything with less than 30MP. anything else is just a toy.

Yep. The D4, for example - not really different from a Hello Kitty cam.

7827
Software & Accessories / Re: Head for Manfrotto 055xprob
« on: October 08, 2012, 07:48:40 PM »
I like Manfrotto. I don't like their QR clamps/plates.  The Arca-Swiss is much better.  I now have all AS plates, and Wimberley C-12 clamps on my Manfrotto heads.

7828
EOS Bodies - For Stills / Re: 5D2 + 17-40mm or 500D + 10-22mm?
« on: October 08, 2012, 07:23:53 PM »
Neuro brings up a good point...  the 17-40 is indeed quite a bit worse in terms of distortion than the 10-22.  If you are using Lightroom you can apply a lens correction profile which does a good job of cleaning it up.  I first noticed the distortion when taking a photo of a door near the edge of the frame, and noticing that the door was noticeably bowed.

Yep - and of course, while that distortion can be corrected, that correction further reduces corner sharpness (in this case, maybe 'further increases corner softness' is the better phrasing).

Will the DLO in DPP help?  I still have not used that feature.

It will correct the distortion, yes.

7829
EOS Bodies / Re: 46mp sensor useless for landscape?
« on: October 08, 2012, 01:33:11 PM »
I read CR because I get factual information to base my equipment purchasing decisions on. Which model of the Nikon Koolpix will give me 46mp for landscapes?

Doesn't matter, any of them will do.  SoNykon's sensors are so awesome that you can upsize an image from any of them (except the ones they sell to Canon for the PowerShots) to 46 MP and retain amazing IQ.  Canon's senors, on the other hand, suck so bad that even if you downsample them in a futile attempt to increase their abysmal DR, it doesn't help.

Also will they have a problem with the color red also?

Sadly yes, because Nikon's logo is yellow.

7830
EOS Bodies / Re: 46mp sensor useless for landscape?
« on: October 08, 2012, 12:44:33 PM »
Subjective "Well he liked the results more with the Nex/Zeiss combo." a scientific analysis makes not. ;P

My Nikon Koolpixx delivers better IQ than Canon's best sensor and lens.  Everyone should know that fact.  Trust me.

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