January 29, 2015, 03:47:18 AM

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Messages - privatebydesign

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1
EOS Bodies / Re: A Sony & Canon Sensor Partnership Mentioned Again [CR1]
« on: January 28, 2015, 10:50:20 PM »
what so many people seem to forget is that Sony sensors work better at low ISO and canon sensors work best at high ISO. Nobody is best across the board. I think it would be a step backwards for the industry to just pick one.

The lead that the Sony sensor has at low ISO is much greater than the lead the Canon sensor has at high ISO. Furthermore the Sony sensor has a linear relationship between ISO and performance where the Canon sesnor does not.

Quote
Another point that needs to be made is that you can outsource the production of your design. It is very possible that Sony can produce a Canon design of sensor more economically than in house at Canon.

Or can produce designs that Canon cannot (due to fabrication process limitations.)

Canon make steppers, part of the machinery needed to make sensors, Sony don't.

Well in that case it means that Canon is behind in another area of its business (whoever is making the plant equipment that supplies Sony or the company that makes Sony's sensors.)

There are three companies in the world that make steppers, Canon, Nikon, and ASML a Dutch company. I believe they all make the same generation steppers, though Nikon are well off the boil, and Canon lost a lot of market share to ASML as well due to very restrictive and proprietary attitudes. ASML have carved a substantial portion of the market out for themselves because of business practices, not technology.

2
EOS Bodies / Re: A Sony & Canon Sensor Partnership Mentioned Again [CR1]
« on: January 28, 2015, 10:31:09 PM »
Not at all. Some just prefer not to have to do a lot of extra color grading for skin tones in post and they rather not have their reds look more purple... because of course, Lightroom is always accurate ;-)  It's a quality issue for Canon. It's also one area Sony has been unable to equal.  Can it be corrected? Sure. Would I prefer accuracy off the sensor? Hell yes.

There is no such thing as "accuracy off the sensor" it is all interpolated garbage, mix it to taste once and make that your import profile, how hard it that?

3
EOS Bodies / Re: A Sony & Canon Sensor Partnership Mentioned Again [CR1]
« on: January 28, 2015, 09:54:26 PM »
Here's a good question... IF this bears fruit... will Canon correct the well known inferior color rendition of the Exmor?  Hmmm....  Place your bets!  That's the only real downside to a Sony sensor because a hallmark of Canon is the most accurate color fidelity.

To me, adding DR with the Exmor won't be worth a hoot if the color isn't as excellent as it has always been with the Canon sensors.  More DR and less noise are almost of no importance to me, but color is another matter.  Color is my number one factor when it comes to IQ.

To me anybody that worries about colour output from today's sensors just doesn't have a good enough idea of custom camera profiles.

4
EOS Bodies / Re: Big Announcements Coming Next Week [CR3]
« on: January 28, 2015, 08:55:23 PM »
Has anyone stopped to consider how disgusting humans look in 1080p close-ups and that 4K, 8K etc. are truly terrifying developments?...

Ha, 4K is only 8MP, now everybody needs 50MP................

5
EOS Bodies / Re: A Sony & Canon Sensor Partnership Mentioned Again [CR1]
« on: January 28, 2015, 08:37:58 PM »
what so many people seem to forget is that Sony sensors work better at low ISO and canon sensors work best at high ISO. Nobody is best across the board. I think it would be a step backwards for the industry to just pick one.

The lead that the Sony sensor has at low ISO is much greater than the lead the Canon sensor has at high ISO. Furthermore the Sony sensor has a linear relationship between ISO and performance where the Canon sesnor does not.

Quote
Another point that needs to be made is that you can outsource the production of your design. It is very possible that Sony can produce a Canon design of sensor more economically than in house at Canon.

Or can produce designs that Canon cannot (due to fabrication process limitations.)

Canon make steppers, part of the machinery needed to make sensors, Sony don't.

6
Lenses / Re: POLL: Which of these UWA options would you buy?
« on: January 28, 2015, 04:15:54 PM »
It really depends on where you are coming from.

Ultrawide has its uses and I prefer to capture images rather than stitch or defish them.    I already have the 8-15 and 17-40.  I haven't felt compelled to replace the 17-40 with either 16-35 for the incremental improvement. 

The 11-24 gives me some new capabilities to consider, but I won't really know if I like the extra width until I use.    If the quality is as good as other recent lens releases I'm more likely to get the 11-24 as a complement to the 8-15.  Not sure if I will hold on to the 17-40 since it overlaps 2 zooms.

Primes are also a part of the equation for this range.   I considered the 14mm options, but am leaning towards the 17 TSE.  It sits nicely in the middle of the 11-24 range and offers additional capabilities when I am ready to go down that path. 

I think the 8-15, 11-24, and 17 TSE combination would cover all of my needs for the foreseeable future.

Who told you that? The 16-35 f4 IS is a substantial leap in IQ over the 17-40 unless you only shoot at apertures that all lenses are equally bad.

7
Software & Accessories / Re: Photostitch ain't perfect, or is it me?
« on: January 27, 2015, 11:49:40 PM »
So, Mr. private, it can get better than this? Especially if my subject is farther away, reduce the effect of the moving front lens? That's good. I was kind of hoping not to have to drop $300 on Photoshop. I have an old one, but at some point I want to get the new one, but I don't want to sign up for that creative cloud extortion deal. Not yet.

It can get perfect, especially when there is nothing too obvious closer to the camera. But with an adjustment to your technique the subject distance is not an issue, you can stitch macro shots, but if you pay closer attention to your entrance pupil then you will get better results all around.

The bigger issue I had with the Canon PhotoStitch was the unevenness of skies when the vignetting wasn't removed adequately.

8
Software & Accessories / Re: Photostitch ain't perfect, or is it me?
« on: January 27, 2015, 11:41:19 PM »
Your technique is bad.

When the subject is close you need to pay particular attention to parallax and rotating the camera/lens combo about the nodal/entry point.

This explains it. http://www.johnhpanos.com/epcalib.htm but there are a billion articles and how to's.

9
EOS Bodies - For Stills / Re: The Canon EOS-7D Mark II AF Grid Void
« on: January 27, 2015, 07:25:26 PM »
My 6yrs will be joining golf team next month. There are two options come to mind

1. CPW-street price 600mm II
2. Cheaper way - 7d II + current 400mm f2.8 IS II

  ???

Having shot some adult golf with a 300 f2.8 with and without 1.4TC on a ff camera (I have the 2x but never used it even though I had enough light and don't even take it now), I would suggest the 600 on ff might well be overkill especially for a more modest distance player, I'd try your 400 on the 1DX first.

Not trying to talk you out of getting stuff though  ;)

10
Canon General / Re: Photographer Petitions Canon for Left Handed Camera
« on: January 27, 2015, 10:06:28 AM »

Have you ever requested TOYOTA to make a left handed Corolla for you, since you can't change gear with right hand?



What planet do you live on? What side of the road do they drive on in Japan?

11
EOS Bodies / Re: Big Announcements Coming Next Week [CR3]
« on: January 26, 2015, 10:25:28 PM »
Well, we finally find out whether Canon either can or cares to match Exmor and whether to live with a mish-mash of older Canon bodies plus new adapted Sony or go Nikon for some....

Hopefully it's not just the 7D2 sensor made FF size.
...

Yes, that's the million dollar question, isn't it?
No.

12
Lenses / Re: Canon Tilt Shift Lens Question
« on: January 26, 2015, 06:29:32 PM »
I was wondering if anyone here has alot of experience with a Canon T-SE lens.
Specifically maybe the 24mm which I have.

I am wondering what degree of Tilt is required to get the maximum depth of field in a landscape shot.
My understanding it's typically not even one notch (1 degree) down.

I know you should focus on the distance and then tilt until something near is in focus.

I am wondering what do people do when they are taking a landscape shot and they want the maximum depth of field in focus. Do they set it to 1 degree down or would they attempt to put it somewhere between 0 and 1 (which because the notches are so small tiny adjustments).

Kind Regards
Fergal


Personally I do this, focus at infinity, then 10x live view into the closest place I want the plane of focus on and then tilt the lens to make that point in focus, then move the live view to the furthest place I want in focus and adjust focus to that if it needs it. Done.

It depends on how far above the plane of focus your camera is. If your camera is 4 ft above the ground and the ground and camera are level then it is 1.1º forward tilt. If you camera is 1 ft off the ground and camera are level then it is 4.5º forward tilt.

Here is a tilt table from a site that has several very good posts on tilt use, done by a member here Keith Cooper. http://www.northlight-images.co.uk/article_pages/using_tilt.html



13
EOS Bodies / Re: 50mp Cameras Coming in March [CR1]
« on: January 26, 2015, 03:04:27 PM »
I gave up waiting and bought a 645z

Don't hate me.

Hope you will relate you experience with the 645z in future posts.
You know we are all secretly jealous....right?

Here you go Erlj :)

http://chrisgilesphotography.com/blog/pentax-645z-review-pt1-the-journey/

Thanks for that series Chris, it looks very interesting on a quick scan through. I must be honest I always liked the idea of the 645Z, I just don't have justification for it yet. What are your thoughts on lighting? Scratch that, I just read section 5!

14
Third Party Manufacturers / Re: One single reason to never buy Nikon DSLR
« on: January 26, 2015, 01:07:18 PM »
Quote
I should note that the Canon pro FILM cameras (Eos 1 series) had a similar problem, though not quite as bad. Thankfully Canon realized their mistake and made a much easier connection for the digital pro bodies.

The EOS 1 had the T3 type connector, a very close cousin of the still current replacement the N3. In my opinion the T3 was a much more robust design, though it was clearly more expensive to make. The T3 has three pins that if they don't line up with their receiving holes retract into the plug, it also has a screw lock to guarantee a connection that can't be accidentally disconnected.

15
Canon General / Re: Photographer Petitions Canon for Left Handed Camera
« on: January 26, 2015, 12:38:25 PM »
Anybody heard of Steve McCurry?

https://www.youtube.com/watch?v=NLgd6isBAoM
I've posted this each time I've seen this story - I'm not sure how anyone in her situation could miss that.

His approach wouldn't work at all in this case.  He holds the camera's weight with his right hand through a mini tripod or bar.  This lady doesn't have use of her right arm.

Maybe not for Sylvia specifically, but it is a bit of an eye opener to all of us, not just left handed people. Besides, Mr McCurry is not a case of a simple left handed person, he broke his right arm when he was a child and he has restricted use/partial paralysis/nerve damage. Personally I found it inspirational, and when I had a very severe accident in 2005 the first thing I used to do arm exercises was my 1D and 16-35.

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