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Messages - Aglet

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EOS Bodies / Re: EOS not good for NASA?
« on: January 14, 2013, 02:25:52 AM »
Space is mostly dark, eh..
Don't want to be using Canons that fill all that dark up with faint reddish stripes and such, gets confusing.  :P

EOS Bodies / Re: Are you really serious about 6D?
« on: January 11, 2013, 09:01:06 PM »
Please help me understand why people are excited about 6D? I cannot be excited about 97% VF, 1 x-pt AF, crippled 6D with wifi and facebook buttons. I will stick to a 5-year-old beloved 5D Mark II which is identical in IQ to Canon's newest sensors...

The 6D has a few IQ improvements over the 5D2 that ARE worthwhile.
100 and 200 ISO banding noise are almost completely eliminated compared to 5d2, my biggest complaint almost fixed.
6D's interface is better, center AF is better, quiet shutter is REALLY nice, hi ISO blows 5d2 away.

Lenses are generally limited to around 22 megapixels of resolution, and no zoom has ever been made for 35mm that can exceed 21.3 megapixels over more than 15% of it's center frame.
nope, plenty of good glass will outresolve even higher res sensors
my low cost Tamron 70-200/2.8 easily produces moire problems on my D800e, backing up what MR sez below. The lens is cheap cuz it's not well-featured but it IS sharp, end to end and right to the corners.
I have seen moire in pictures with a regular lens and a crop sensor 24Mp, equal to 54 Mp at a 24x36mm sensor
area, this means that the lens resolution are greater/ out resolves  the  sensor resolution.
The best lenses today handle  more than 54Mp .
More pixels gives also better tonal transitions, less jaggies, easier to correct CA, crop etc etc

The point therefore of the 6D is that it has less than HALF the noise of the 5D Mark III and 60% better shadow recovery while having enough megapixels for any lens or just under.

The 6D really shines at super high ISO though, at ISO 16,600, the 5D Mark II has the same ISO performance as the 6D at 51,200. Thats 3 times better high ISO, in addition to the 2 times less noise at low and medium ISO.

One might be mistaken to assume that the 6D has the same or equal resolution to the 5D Mark II, because it has 99% the linear resolution. This would be a mistake, the 6D has 13% MORE resolution due to an improved AA filter using the latest technology.

It's also lighter, smaller and has much better AF, the price will hit $1700 in 6 months too. Guaranteed.

all good things over the 5d2 and even 5d3, depending on your requirements

Third Party Manufacturers / Re: D5200 review
« on: January 11, 2013, 02:46:20 AM »
Not a big fan of TechRadar's reviews but, if they're consistent, their early review of the D5200 is looking impressive.

Looks like it's mostly ahead of the D5100 in sensor performance, add in the higher end AF system and 5fps this will likely be a great little camera.  Small pixels mean overall SNR is lower and it shows on that particular graph.
Usable thru ISO 3200.
6400 and up if you don't mind it getting muddy looking.

EOS Bodies / Re: EOS 60D Stock Levels Getting Low?
« on: January 11, 2013, 12:29:16 AM » much for waiting for ces for an announcement on the 7/70D and possible release date. Looks like we wont see either of these cameras for another 6months at least. Disappointed isnt the word. Just seems crazy these cameras are from 09/10 and are the current top of the line aps-c, what are they playing at?

Oh well.
7D2 / 70D would go against Nikon's unannounced replacements for the D300s and the D7000.
I think it's becoming a waiting game between these pairs of cameras.   Whoever announces first gives the other the opportunity to improve or change their product before making it public.
I was expecting one of them might let the cat out of the bag at CES but there's also CP+ in a few weeks in Japan...  Not that that's any guarantee anyone will blink then either. 8-\

EOS Bodies / Re: Which is better? 5D MKII or 6D?
« on: January 11, 2013, 12:22:12 AM »
how often does anybody shoot at faster than 1/1000 anyway?
I do.  Often.  Nuff said.
I very rarely even need to use 1/4000, only occasionally 1/2000.
Any less light required, a 2 to 4-stop ND filter is a cheap solution.
not having faster than 1/4000 is not a deal-breaker.

EOS Bodies / Re: Which is better? 5D MKII or 6D?
« on: January 11, 2013, 12:17:11 AM »
You misunderstood what I meant (I think), Canon can  with several more rows of black / covered pixels offset the accruing noise already  at the readout.(CDS)  Nothing to do with PP work

I did misunderstand what you meant, i read too fast.
Thanks for clearing that up for me.

Yes, that's a perfectly feasible method and may even be doable even in firmware as-is with the existing masked pixels?

EOS Bodies / Re: Which is better? 5D MKII or 6D?
« on: January 10, 2013, 05:41:47 PM »
Read noise and fixed patter noise   can easily been level out / removed with black frames,..
true, but that's more PP work than I want, or any of us should have, to do to get a decent low ISO image

There are also banding  where  the read out levels are  uneven calibrated  to the ADC , like the  problem with the first 7d.
Sold my 7D because of that, tired of those 8 pixel wide strips in the shadows because the dual readout channels were not properly matched

If Canon would  they can limit the read-out noise, others with the same type of readout and signal path to the ADC can do it. ..
That's what I'm thinking. There are other sensor systems out there that are made more like Canon's than Sony's and they still perform better than Canon.  Obviously the technology exists for Canon to improve their read noise, and their read noise variation, even without spending a lot on developing a sensor as good as Sony's, etc.

The 6D is the best for reduced low ISO pattern noise I've seen since the 50D came out.  Their earlier cameras did not seem to suffer from FPN nearly as much.  Seems that when they added video capability, that's when things started to go sour.  Even the live-view capable 40D and 400D didn't have the FPN isssues as bad as later models like the 7D, 5D2, etc.

All this juicy sounding Fuji talk is making me want to buy one to see what it can do!
Not that I wouldn't anyway..  Was just a matter of when. but by the enthusiasm you guys have for it I might boost it up my priority ladder.  I already know the IQ can be very impressive from them but the overall handling sounds to be pretty good and I'd like that.
Gheez.  And I'm still waiting for the silly Pentax K-01 I ordered for dirt cheap.
Guess I'll wait and see what the new X20 performs like.  I'm not keen on spending midrange SLR prices for the bigger X bodies as I don't mind carrying a small SLR around most times as it is.
If that little X20 really performs for IQ and overall handling in its slightly smaller package that could be something I'd enjoy.  I already like the IQ from my G11 and G12 but the ergonomics and overall handling are really quite poor IMO.

Arghh.  And there's that Olympus OMD EM-5 too!
another very good overall package, altho a bit more than I'd care to spend right now as I'd want the grip and extra battery layer too.

EOS Bodies / Re: Which is better? 5D MKII or 6D?
« on: January 10, 2013, 12:24:57 PM »
here is what happening" since 2008" sensor  and  todays 6D sensor
improved  QE, higher FWC, but still a lot of read out noise  and low DR at base iso,
improved high iso, and less banding at base iso

however, the slight reduction in 6D's read noise figure does not tell the whole story.

We don't know HOW the read noise is calculated.  To me it seems they're taking an AVERAGE read noise value instead of a peak-to-peak read noise value.

The difference being you can have 2 levels of average read noise that are very similar, as in the 5d2 and 6d, but they can have different peak-to-peak values.
The peak-to-peak read noise levels are more relevant because the peaks are what become more visible in shadow areas.
In the case of the 5d2 the peak read noise occurs repetitively when going across the sensor horizontally, which results in a pattern of vertical noise stripes visible at lower ISO settings.  These stripes get obscurred by larger amounts of relative random noise as you increase ISO.
The 6d's low ISO readout noise is much more uniform from pixel to pixel, resulting in a smoother looking tone in the shadow areas.  This sort of noise also responds better to NR software so you lose less actual image detail because you don't need to smear the image so much to obscure the banding structures.

In this respect alone, the 6D is quite far improved over the 5d2 and even the 5d3.

As an overall package, I'd still consider the other improvements and refinements of the 6D over the 5d2 as significant.
I'm selling my 5d2 to fund a 6d. The 6d is Canon's best IQ per cost FF camera and if you don't need the performance features of the 5d3 or 1dx it's a no-brainer.
I don't care about video so haven't compared it.

I seriously doubt that the RX-1 will have much better IQ, but we'll have to wait for the reviews.

Posted yesterday by DxOmark - the RX-1 kicks serious butt!

I'm not crazy about their mysterious overall score number but the raw sensor scores still tell the story.  It's a very technically capable little camera, as it should be for that price!

I love all kinds of cameras and have been lusting for one of these new Fujis for a while.  Altho I've seen an earlier model best my 5D2 for IQ at times I was just not familiar enough with them. The cost was high, and the raw workflow would be another direction I'd have to change; too many little factors held me back from purchasing.  I did like the way the X100 felt in my hand, if a tad "light."

The new X20 is hitting a price point where I could justify yet another camera in my collection and figure out what niche it best fills later.

Definitely not going to forget about Fuji now!

EOS Bodies / Re: What Canon Body is threatened buy the Nikon D5200?
« on: January 09, 2013, 01:02:28 AM »
all canon crops.
it not a competition anyway. its an outright flogging..

+1  ;)
and at a good price point too.
Let's see how the new, Toshiba-made, sensor performs.  It's supposed to be an improvement over the D3200's.
I'm certainly watching this one closely but won't pounce on one until the reviews are out, AF performance shows its worth in this body.. and maybe even the price drops a little.
LOTS of features in a compact body!

Nikon  has now another partner besides Sony, Aptina Renesas and it's Toshiba. The sensor in the camera is a Toshiba manufactured sensor.

I was just about to post that. :)
Toshiba's been out of the limelight in electronics for a while.  I hope Nikon was not exaggerating when one of their people said the d5200's sensor will not only be different from the d3200 but will also be measurably better.
Toshiba has the fab and tech to produce pretty much anything from heavy power devices to the best sensors so hopefully this is another source of top quality silicon fabrication for Nikon to tap into with their patents & licensing.

Which now leaves us wondering, what sensor and what will be the performance of it when it comes to Nikon's pro-level crop bodies; D400? D7200?..  They should better the consumer bodies by a little bit.
And is Nikon waiting for Canon to announce 7D Mark II or 70D before they release these new crop bodies?
Waiting game for all of us now.

Meanwhile, if anyone's looking, Pentax is selling off their Q and K-01 stock in north america and likely around the planet at really low prices.  I just ordered a K-01 with 40mm kit lens for a pittance.  Looked forward to finding out what it's good for; video perhaps.

Got to play with one a bit at the shop today, shot some dark frames and pushed them as i usually do to better visualize the pesky noise patterns.

The 6D is considerably improved over the 5d2 and even 5d3.  Although the total amount of dark level noise is not so greatly reduced, the subjective annoyance of its patterning is noticeably less.

5d2 could produce some fairly harsh noise lines (hor. & vert) in shadows at 100 ISO, they soften a bit from random noise at 400 ISO and up.

6d, at the same ISO settings, produces far less obviously structured noise lines.  THIS IS A GOOD THING! :)
Canon has actually made some significant improvement in this area over the older cameras!

6d's overall noise is more random and uniform, tho still exhibits some fine vertical stripe structures at 400 ISO, similar to 7d's low iso noise but not as severe.  Overall there is still some coarse but smooth transition variations in horizontal and vertical axis, almost like large blotchiness.  This would not show up on large prints anywhere near as bad as 5d2 or 7d noise stripes.

6d's subjective total noise at 400 iso is similar to 5d2 at 100 iso.  And the 6d's noise would clean up better with NR software.

6d's high iso performance is impressive!
I could print a decent 6x9" from a reasonably exposed 25600 iso shot! (larger if not too fussy)

So, altho 6D's dynamic range will not be significantly better than 5D bodies at low ISO, its raw files should provide more post-processing leeway because of the reduced severity of patterned noise. Its extra performance at high ISO is a definite bonus.
Fussy shooters who do a lot of post-processing should definitely consider the 6D over either 5D body if low ISO performance is critical to their work.

 SoNikon sensored cameras still do blow the 6D into the weeds with far cleaner low ISO data.
Hopefully Canon's (soon to be released?) next generation sensors will further improve on this dark/read noise issue.

As it is now, I am very tempted to sell my 5D2 to fund the 6D, it's that much more usable to me.

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