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Messages - ishdakuteb

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EOS Bodies / Re: EOS not good for NASA?
« on: January 13, 2013, 08:50:49 PM »
well... all i can say here is it is all about political things during contract bid...

EOS Bodies / Re: Auto_focus Acting Up
« on: January 12, 2013, 03:29:38 AM »
i do not know much about 1dx but sometimes a tight lens hood could cause this problem also... have you try with other lens?

Third Party Manufacturers / Re: Pocket Camera
« on: January 09, 2013, 03:11:18 PM »
sometimes one will find out that having a pocket camera is really fun, especially those cameras from smart phones...

taken with Canon ELPH 100 HS (straight out of camera, downloaded back from facebook)

EOS Bodies / Re: What Canon Body is threatened buy the Nikon D5200?
« on: January 09, 2013, 03:18:31 AM »
thought that i would share this.  just happen to get in to see what d5200 images look like from nikon site and find out this:  sample images 3 was picked out since it is with highest iso.  i downloaded it but exif shows that the image belongs to nikon d800e with iso of 100.

i was like "what the heck"...  as if nikon marketing team see this message, please ask your team, developer team and QA team to have little more solid performance.

EOS Bodies / Re: What Canon Body is threatened buy the Nikon D5200?
« on: January 09, 2013, 02:52:38 AM »
Except for the low ISO range is the newly announced D5200 a competitor to the T4i or the 7D? I see it as an upgrade to old D90 users but it must have a Canon rival now doesn't it?

instead of answering your question.  i am going to ask, "how many canon 7d owners have sold theirs to buy canon t4i even though they are all know that t4i is better in low light capability than the one that they are having?"  if you can answer this question, then you probably find out what is the answer to your question above.  thought that i do not need to mention that changing gears is a major decision since one will lose lots of money when making a change the whole system...

just a thought...

EOS Bodies - For Stills / Re: Anyone still using a 20D?
« on: January 06, 2013, 12:38:37 PM »
a camera with me everyday is my 30d even though i am owning 7d and 5d mark iii.  i am using 30d to support all my experiments, especially shooting textures.

EOS Bodies - For Stills / Re: Thinking of downgrading my 5d3 system
« on: January 06, 2013, 12:15:20 PM »
my suggestion for you is not to downgrade since you will lose decent amount of money when downgrading.  if you really need cash, then sell your 24-70mm II to get 24-105mm...

EOS Bodies / Re: 6D or 5D3 (or wait for 7d2?)
« on: December 08, 2012, 03:44:26 AM »
i would start with an "if".... if canon 7d mark ii can produce an image like either fuji x-e1 or x-pro, it would be worth to wait... i am still loving my canon 7d even though i have my 5d iii.  i like both crop frame and image quality at high iso of full frame.... :P

You're adding a lot of confusion here by arbitrarily defining your own zero.  It's like saying you're going to start counting everything from the number 4, so if there are of 2 of something on a table, you're telling everyone there are 6.  Makes no sense.

0 EV has a real, absolute definition - an exposure of 1 s, f/1.0, ISO 100.

Technically, your "0" EV is actually EV = 5.  That means your -7 EV is really -2 EV (and in fact, the 6D is spec'd to AF at -3 EV, but of course, that may not equate to real world numbers).

It would help avoid confusion if you restate your numbers according to the real definition of EV = 0, otherwise many people will read that you're testing at "EV = -7" and think you're spewing complete bullsh cow manure.

Sorry, but the fact that you don't seem to understand some of the basics, like the fundamental definition of the basis for the specification you are testing, makes me question what you're doing.  I definitely appreciate individual testing (and especially the fact that you did post your definition, so the error could be spotted), but post/blogs like this contribute to the vast and growing pool of bad and/or unreliable information out there. 

neuro, i have question on this part:  base to my conversion of everything back to iso 100, it shows that
- 1/60 f2.8 iso 400 (0)          will be equivalent to       1/15  f2.8 iso 100  which is     EV 7
- 1/60 f2.8 iso 102,400 (-7)  will be equalivant to       2       f1.0 iso 100  which is     EV -1

is there something wrong with my conversion?  however, taking a look into his images, i guess that he was talking about zone system instead of exposure value, but there is no such -7 zone system, and i am scratching my head over here :P

Lenses / Re: Advice 5d3, wide angle
« on: December 01, 2012, 10:33:18 PM »
for me, i prefer both crop and full frame, that is the reason why i am still keeping my 7d after buying 5d iii... not sure about you.  as if i would have to sell in order to have some cash to assist for new purchase, i would first sell your 10-22mm

my 2 cents

EOS Bodies - For Stills / Re: Picture Styles: 5D Mark III
« on: November 28, 2012, 11:26:04 PM »
or you can do this way (using photoshop):

1. add curve adjustment layer
2. set black to 3%
3. set white to 96%
4. take black i-dropper, drop on black
5. take white i-dropper, drop on white

i think it would come out perfect   :D

EOS Bodies - For Stills / Re: Picture Styles: 5D Mark III
« on: November 28, 2012, 09:27:42 PM »
probably wrong white balance makes it soft.  try to correct your white balance prior to shoot the chart to see as if it makes a different.  as if you would like to make further experiment, then shoot your chart with major wrong white balance with shifting toward to warm tone, you probably see what i am talking about.... i tried this before :P

i tried everything though... ahahhaa... that is the reason why i am using my 30d most of the time.  in case i broke it in in some stupid experiment, i will then not sit there and cry ;D

EOS Bodies / Re: 5D3 continuous shooting speed
« on: November 28, 2012, 03:38:19 PM »
very interesting... will find out this weekend.  however, canon please fix this problem as as if it is the case...

EOS Bodies / Re: Possible positive 6D surprise? Should I wait?
« on: November 27, 2012, 11:15:08 AM »
Various websites are saying the 6D sensor will actually have an advantage in low noise at high ISO vs. the sensor on 5D3. 
I have an itchy trigger finger with all the $2500 give-aways on the 5D3.  If the 6D were really going to stay at or around $2100.00, it would seem like a slam dunk for buying 5D3, UNLESS the new sensor really is better in low light...  I realize the AF seems to have been deliberatively crippled (and overly-so!), but for shooting portraits and candids and casual soccer of my kids, I really don't need the pro athlete or bird-in-flight AF.

Plus, heck, the replacement for the 7D (7D2?) could have a wildly better sensor?

What do CR folks think of this?

I should say you can see my equipment below my name.  I shoot portraits and candids of my 7-year old and 6-y-o and my infant.  They do/will play some peewee soccer, but nothing challenging for another 6-8 years max!  I've never met a bird who would pay fair value for an excelent portrait at 1000 yards, so I don't need too incredible an AF capability.   :)

If your choosing between the 6D and 5D3 based mostly on sensor tech, Be prepared for disappointment.

If you choose based on the metering, AF, ergos, etc... the 5D3 is vastly superior.

i think the same way though... even though i believe that canon 6d has advantage on clean noise at high iso, i would still pick 5d mark iii as if i bought it again...

EOS Bodies / Re: Possible positive 6D surprise? Should I wait?
« on: November 26, 2012, 11:39:26 PM »
i personally do believe that canon 6d will have cleaner iso comparing to canon 5d mark iii...  here are some example of high iso images for someones in previous post wondering as if 5d mark iii noise is usable at 12,800 or higher.  to me, it is usable up to 25,600.  but to be safe, use it somewhere 10,000 :P

note:  no noise reduction in these two images...

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