Messages

331

EOS Bodies / Re: 5D X or Mark III Specs & Release Date? [CR1]

« on: February 02, 2012, 09:58:21 AM »

This would be basically everything I have wanted since owning both the 5D Mk II and the 7D and deciding which to keep.

332

PowerShot / Re: "Best compact camera" - DxO review G1X

« on: February 01, 2012, 03:35:10 PM »

Canon states, "A new photodiode structure with an increased photoelectric conversion rate increases the sensor's sensitivity by approximately 2 stops over previous models, meaning higher ISOs with the lowest noise of any EOS digital camera." 

That's exactly the text I was thinking of. Thanks for looking it up. The point I was trying to make regarding the G1X performing similarly to the 7D was that if in order to improve beyond the 7D, a new physical photodiode structure is needed and that new structure requires a new chip manufacturing technique then it makes sense that they would reserve that manufacturing capability for the new pro sensors.

Based Canon's statement, it seems pretty clear that the 2 stop improvement is in the sensor: "increases the sensor's sensitivity"

UPDATE: I reread neuro's post and see that I missed his point about increased sensitivity in the sensor not necessarily corresponding to reduced noise for the same ISO.

333

PowerShot / Re: "Best compact camera" - DxO review G1X

« on: February 01, 2012, 03:16:50 PM »

That means that either 1) Canon didn't try to improve the pixel characteristics of the sensor, 2) they tried to make it better and failed, or 3) they do have the ability to make it better, but chose not to include those enhancements in the G1X sensor.  I think #1 is pretty unlikely.  I hope it's not #2, because that bodes poorly for the next generation of APS-C sensors they release.  I'd be unsurprised by #3 - in fact, that's very logical if they're going to release a new APS-C sensor (7DII, 70D) soon and want to prempt comments like 'Canon's much cheaper point-and-shoot G1X offers the same IQ as this expensive new dSLR'.

I wonder if it's a manufacturing issue/strategy? I believe they said that the 1DX sensor used some new technology. If that required some new chip fabbing equipment it would make sense for them to use that new capacity only on their pro products. It could be that they are making the G1X's sensor along side the current APS-C sensors to save on cost and getter a better return on that existing fab investment.

334

Lenses / Re: Dead bug on the inside of my Sigma 50mm f/1.4 front element!! WTF???!!!

« on: January 30, 2012, 05:23:54 PM »

The bug might have enough mass that a good sideways whack of the lens would dislodge it from the element and off to the side. I bumped my used Sigma 50mm and suddenly found an eyelash against the inside of the front element. I gave it a good sideways whack into the palm of my other hand and it's gone. I figure it's stuck to the side in there somewhere...

335

EOS Bodies / Re: 5D Mark III Sighting?

« on: January 23, 2012, 02:24:30 PM »

To me, the MFN button indicates the camera has AF area selection as it does on the 7D. If so, this would argue for it having enough AF points to make AF area selection desirable. Hooray!

336

Lenses / Re: Samyang (Rokinon) 35mm 1.4 deal!

« on: January 20, 2012, 06:31:21 PM »

If anyone decides they don't want there's for some reason, please let me know.

337

Lenses / Sigma lens deals ($100 off 85mm f/1.4)

« on: December 16, 2011, 03:14:34 PM »

the-digital-picture.com has just shared a list of fresh Sigma deals including $100 off the 85mm f/1.4 at Adorama. I know there has been a lot of interest in this lens lately, so this is a great chance to get one at a discount.

http://www.the-digital-picture.com/News/News-Post.aspx?News=1644

http://www.adorama.com/SG8514EOS.html?EmailPrice=T

338

Lenses / Re: Canon 85mm 1.2LII vs Sigma 85mm 1.4

« on: December 16, 2011, 03:12:33 PM »

Adorama has just taken $100 off the Sigma: http://www.adorama.com/SG8514EOS.html?EmailPrice=T

339

Lenses / Re: 70-200f2.8 mk.II vs 70-300L sharpness test

« on: December 07, 2011, 12:21:27 PM »

If I remember correctly, focal length is measured at infinity focus and depending on the lens can change with focus.

340

Software & Accessories / Re: Spyder3Pro vs. Spyder3Elite: Your thoughts

« on: December 06, 2011, 02:39:16 PM »

This would be for my 27" iMac.

341

Software & Accessories / Spyder3Pro vs. Spyder3Elite: Your thoughts

« on: December 06, 2011, 01:19:15 PM »

I am finally going to buy a monitor color calibration tool and these two seem to get favorable reviews. What's not clear to me is the difference between the two. I see that they sell software to upgrade from Pro to Elite, so it seems like the actual hardware is the same. Thoughts? Recommendations?

342

Lenses / Re: EF 24-105 F4L - Normal or Issue

« on: December 05, 2011, 03:10:37 PM »

I have owned two copies. One had more resistance than the other. I preferred the one with more since the lens didn't extend on its own while walking around.

343

Lenses / Re: Canon 85mm 1.2LII vs Sigma 85mm 1.4

« on: December 05, 2011, 03:04:48 PM »

Oh, I would also comment that I haven't experienced any front or backfocusing that I am aware of. That being said at f/1.4, focus point placement is critical. In the picture I shared where she is wearing the winter coat you can see the sharpest focus on her coat. I probably rocked back on my feet slightly between focus lock and taking it. The depth of field really is that shallow.

344

United States / Re: How Many MP's On A FF Equals a 35mm Canon AE1 Film Camera?

« on: December 05, 2011, 02:58:11 PM »

I feel like it's not a straight forward question. Also, what speed film and which brand and product? I would believe that grain size matters, but haven't compared. It would be interesting to compare Ektar 100 (billed as world's finest grain) to Porta 160.

345

Lenses / Re: Canon 85mm 1.2LII vs Sigma 85mm 1.4

« on: December 05, 2011, 01:59:59 PM »

Last one unless you want more... ISO 100 f/5.6 1/750s. All of these are 5D Mk II by the way.