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Messages - Marsu42

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Lenses / Re: Effective iq for same dof on ff vs. crop @ same shutter speed?
« on: September 19, 2013, 08:55:55 PM »
If you mean 1:1 macro, the 1.6x effect on DoF doesn't apply.

I meant macro as in "very close up" like in the "macro" focus limiter range of the 100L - I very seldom really shoot at max. mag 1:1, too short working distance and too long exposure times for handheld or anything that moves. But for "just" close up macro the shallow dof is also a problem, so I was wondering if the same effect as in other shooting distances apply (i.e. higher iso capability gets nullified by the need for smaller apertures).

EOS Bodies / Re: 6D Mark II
« on: September 19, 2013, 08:49:12 PM »
The PowerShot S100 got a firmware update to fix minor issues.  Just sayin'...   ;)

Ok, I wouldn't know about that - so I'll modify my statement to only include feature upgrades or fixes that could be counted as feature upgrades (like other min. shutter speeds for the 6d) :-o

EOS Bodies / Re: 6D Mark II
« on: September 19, 2013, 08:29:34 PM »

You seem to be new around here, a [CR1] is a wild guess - and the 6d receiving the af servo indicator even though the 5d3 hasn't gotten it? Now, now ....

Lenses / Re: Effective iq for same dof on ff vs. crop @ same shutter speed?
« on: September 19, 2013, 08:14:13 PM »
Seems that APS-C is even more advantageous for those who want to keep more objects within the depth of field.

Until someone comes up with a better explanation than the above, I admit I'd have at least expected ff to be equivalent to crop @same dof ... but as also mentioned crop really falls apart @iso3200+ and then it's no match, so you might be safer pushing the dof limit with ff than with crop in dim light.

Technical Support / Re: How to fix a physically broken sd card?
« on: September 19, 2013, 08:11:08 PM »
One of the gold contacts going to come lose and break off leaving you unable to get photos off of it?

That's what surprised me when my sd card disintegrated - the actual chip/contact module seems to be bomb proof, quite contrary to the hollow "large" sd-type casing. That's why I had the idea to fix it...

Plus they do eventually wear out and start losing data/capacity if you write to enough.

Afaik only the premium sd cards have wear leveling, and they should have enough reserves before loosing data - but I didn't really research that.

EOS Bodies / Re: 6D Mark II
« on: September 19, 2013, 08:07:39 PM »
what a silly response.......

I think this is uncalled for, if you don't mind me saying so...

EOS M has had fixes as have many other 'non premium' models...

Yes, but only because the af was practically broken on delivery - I was talking of feature upgrades to stable products or fixes of smaller issues

I think you will find that the  5D mkiii is not their premium FF either!!

It is for most people, the 1d line is another league alltogether

There was a firmware update scheduled for June for the 6D which has been delayed.

Yeah, right, and pigs can fly :->

Lenses / Re: Effective iq for same dof on ff vs. crop @ same shutter speed?
« on: September 19, 2013, 08:03:37 PM »
In other words, if you switch to a larger sensor, feel free to stop down the lens by 1.3 stops and boost the ISO by 1.3 stops should you want to retain the larger DoF you had with crop.

... and since the advantage of ff vs. crop is said to be about 2 ev (max) you're agreeing that if you need a deep dof using a ff is not even on par with crop, but a disadvantage?

Lighting / Re: Cheap manual flash to use for fill lighting...
« on: September 19, 2013, 07:58:34 PM »
Not at all, I just shot these for this thread, I'll do some more once it has gone dark.

You're actually shooting clay heads :-> ... did you make them for practice? This is a great idea, I also wanted to do that but never came around to it, that's why I have to keep asking friends of mine to pose for paramount, loop & rembrandt lighting :-p

Fourth image is 1/250 all else the same, we now have eve more contrast as the face image left is another 1 1/2 stops under the face image right.

Hmmm, this is not my recent experience - in your shot, you've got a nice window with daylight and you're shooting at rather shallow dof with f2.8.

The day before yesterday I shot in a dimly lit room in the evening with a medium window - and I needed a larger dof and a fast shutter speed because I was doing a portrait of a friend of mine with her dog on her arm. I used the ambient from the window (I didn't measure it) as shadow fill for a flash from the other side as key light - and I was @iso1600 to see any noticeable ambient effect.

I calculate: darker ambient than in your example =  maybe -2 ev ... smaller aperture = another -1 to -1.5 ev. ...and that's for a "flash type" shot, a more natural "ambient style" shot would even need a higher iso setting.

I'm definitely not through trying to mix ambient & flash indoors, so I'm open to other experiences :-) but I think the combination of deeper dof + dim ambient in non-studio situations makes quite a difference.

Lenses / Re: Effective iq for same dof on ff vs. crop @ same shutter speed?
« on: September 19, 2013, 06:53:32 PM »
Diaphragm opening to match the DOF is also 1.5 stops.

This is the same for all apertures & distances? Is it different for macro with an even thinner dof?

Another issue is finding a standard zoom lens for good quality full frame. Canon 24-70 F2.8 II is a dream, but the price is a nightmare.

The Tamron looks fine to me, the Canon crop f2.8 zoom in that range is also rather expensive and not even sealed - so that's not my problem with ff.

Technical Support / Re: How to fix a physically broken sd card?
« on: September 19, 2013, 06:49:59 PM »
At those prices, trying to fix a busted old one is simply stupid.  IMHO, of course.   8)

€30 is €30 ... and the point is that it isn't busted, it's just the plastic casing, the actual sd card chip carrier is fine. Would you junk your car because the windshield wiper is broken? But then again I was never the "just throw it away" type :-p

EOS Bodies / Re: 6D Mark II
« on: September 19, 2013, 06:45:53 PM »
what exactly needs to be "fixed"?

This comes to mind (ask me again when my 6d arrives :-p)

  • Multipoint af servo not properly handing over focus from one point to the others, esp. not selecting the center point (CarlTN keeps mentioning this)
  • Braindead crippling that hdr source files cannot be saved
  • Crippled min. shutter in av (1/250s is the fastest? Canon, you gotta be joking! Hail to ML!)
  • Crippled feature -> button allocation vs. 5d3
  • GPS off on power down, auto-enable on power up

EOS Bodies / Re: 6D Mark II
« on: September 19, 2013, 06:24:05 PM »
New firmware could address a lot of issues, just like the one for the 7D did!!

I Forgot to mention this: I don't expect any firmware feature updates for the 6d, actually I'd be surprised about any bugfixes at all since in the past they only graced their premium models (7d = premium crop, 5d2 = only ff then, 5d3 = premium ff now). People should not buy the 6d in the hope that something will be fixed, it is what it is.

EOS Bodies - For Stills / Re: Is it flare, internal reflections or a ghost
« on: September 19, 2013, 06:19:18 PM »
Most disappointed that the lens does not manage the internal reflections better.

Flare/Reflection control is a very underrated characteristic of a lens and seldom mentioned - the 24-105 is general purpose, so it probably was not the main design concern. For dedicated landscape lenses it's different, that's why I'm very happy with my 17-40L which doesn't show any flare or reflection (yet) no matter where you point it...

EOS Bodies / Re: 6D Mark II
« on: September 19, 2013, 06:15:23 PM »
I bet Canon will release a 6D2  ;D Any thoughts?

The 6d is designed to make money for Canon, not to inspire awe and excitement. As everything about the 6d is budget they will keep lowering the price until their break/even point is reached, and only then replace it, and only after the 5d4 is here.

Imho the 6d has 2-3 years of life in it, it was never meant to outgun the Nikon d600 but offer a budget ff for people who want to or have to stay with Canon.

Btw the Nikon d610 is only an embarrasing bugfix for the d600's sensor problems, so actually that's one brownie point for Canon who for the lack of enthusiasm updated the 5d2 into a mature 6d product.

Technical Support / Re: How to fix a physically broken sd card?
« on: September 19, 2013, 06:09:08 PM »
I would not fly in a plane that was glued with super glue... ;)

It really depends on the usage scenario - for mission critical applications, I wouldn't trust any *one* sd card, not matter if brand new or glued together but rely on a second card slot or live backup via wifi ... but for data transport, i.e. duplicate data, the glue solution might very well do ok.

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