April 16, 2014, 07:33:49 AM

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Messages - ksagomonyants

Pages: [1] 2 3 ... 12
1
12 mp? Foveon or Bayer sensor? It's hard to believe that Sony, which got good reputation because of its high MP sensors, would go back to 12 mp camera  :o

2
Apple got the patent, which will allow interchangeable lenses could be added to Apple devices. The mount would be built-in to the iPhone’s rear-facing camera bezel, which would protrude marginally above the case. Various lenses with bayonet-style connectors would then be attached and locked into place.

More to read:
http://www.macrumors.com/2014/03/13/apple-bayonet-lens-mount/
http://www.dailymail.co.uk/sciencetech/article-2595083/So-THATS-Apples-protruding-camera-Patent-reveals-let-iPhone-users-attach-lenses-device.html


3
If it helps with your answer: 
  • Besides the 70-200, I use a 5D3 with a 24-70 F/4 IS, 28 F/2.8 IS, 40 F/2.8, 50 F/1.4, 100 F/2.8L IS and a 2x T/C.
  • Enthusiast only -- not a pro.

I appreciate the guidance!

- A

Since you don't have 85L yet, 135L will be great for half body portrait. It's sharp and the bokeh is smooth.

I'm shooting with 2 bodies. My most use combo are: 24-70 II + 70-200 f2.8 IS II and 50L + 135L(when I need some extra speed for indoor).

Why would he spend extra $700-800 for 135L if he can get sharp half-body portraits with nice bokeh using his 70-200?

Besides being great lens for portrait, 135L will be great for indoor(1 full stop faster than 70-200), sharp at wide open, light weight and of course price tag(when compared to 85L).

All great and valid points, Dylan. But the OP is not choosing between 70-200, 135 and 85 1.2. He's asking if 135L is going to give him something unique as compared to 70-200 2.8. I think it won't. And if the OP needs to have a nice indoor lens for portraits, sharp, inexpensive and light, he can just get 85 1.8. The 85 1.2 is a different story, but I'm not sure OP is interested in getting it  ;)

P.S. I really like your lens collection  :D

4
Third Party Manufacturers / Hasselblad worth of almost a million $
« on: March 25, 2014, 11:25:53 PM »
Hasselblad 500, a medium format camera, which was used by astronauts to photograph the Moon, was sold for almost one million dollars! It's the ONLY camera that was actually brought back by astronauts, as the other cameras were left on the Moon, and only film was brought back to Earth. James Irwin, the Apollo-15 astronaut, used this camera to take 299 pictures on the Moon and 96 pictures during the flight.

More to read here http://www.dailytech.com/Camera+Used+by+Astronauts+on+Moon+Pulls+940+Gs+at+Auction/article34582.htm

5
Canon General / Re: Lioness Fights Crocodiles over a Dead Hippo
« on: March 25, 2014, 10:16:19 PM »
I feel like the hippo ...

I feel the same every time I come back home from school  :D

6

@ksagomonyants

What I'm seeing in those photos—content shifted by a few pixels—is almost certainly a software bug.  A hardware failure would almost always give you a block of absolute garbage.  It's remotely possible that there's a defective register in the GPU, resulting in the low-order bit sometimes reading out a zero when it should read a one, which might cause that if that register were used as the source or destination address for a block move, but the odds of something like that happening are pretty small, and the odds of the chip being even halfway usable in that sort of state are remarkably close to zero.  But you never know.

I would suggest that you install gfxCardStatus.  This menu bar extra does two things:

  • It provides notification when your system switches between the integrated GPU (Intel) and the discrete GPU (AMD or NVIDIA).  If you experience problems at those transitions, it is almost guaranteed to be a software bug.
  • It lets you pin the GPU mode to either the integrated GPU or the discrete GPU.  This can tell you which GPU or GPU driver is broken.

Note that if you decide to pin the integrated GPU, you'll probably have to do so while Photoshop is not running, as most of those sorts of apps are on a blacklist that pins the discrete GPU automatically on launch.

With that said, let me be perfectly blunt: GPU drivers seem to almost invariably suck (and have sucked for as long as I can remember).  For the first several months after I got my previous MacBook Pro, I experienced *constant* graphics corruption problems.  After a little research, I determined that everyone was seeing them, and that it only occurred when using the integrated GPU, so I configured my system to use the discrete GPU exclusively.  Eventually, after filing lots of bugs and doing lots of swearing, they finally got it straightened out, but it isn't uncommon.  At all.


@christianronnel

As for the logic board failures, that's usually a thermal problem.  Someone probably didn't assemble the computer with the right amount of thermal paste between the GPU and the heat sink, resulting in overheating when the GPU is under load.  You might be able to work around the problem by using one of various tools that let you tweak the fan calibration.

If that doesn't help, then the GPU's heat is probably causing one of the BGA solder balls to not make proper contact with the logic board, which means that your logic board needs to be reflowed.  I'd expect that to be cheaper than a replacement logic board, though if the problem is caused by using the wrong kind of solder and/or not keeping the chip cool enough, there's no guarantee it won't just fail again after another year.

But before you go to such extremes, call Apple anyway.  Then press zero until you get a live human.  Ask to speak to Customer Relations.  Tell them that you've seen the thread, and that you're experiencing the same failure out-of-warranty.  Ask them to make a warranty exception.  They're the only team that can typically do that, so you might as well skip all the tier 1/tier 2 tech support and go straight to the people who can actually help.

Hi, thanks for your message. I did go to the Apple store, showed the tech guys the same pictures I posted here. They said it's logic board/graphic card failure (I hope I understood them correctly). I told them about this thread and the one on the apple.com website. They said they never heard about this issue with early 2011 models. The funny thing was they said, well you know people say all different kind of stuff on forums  ;)

So, I paid $310 to get the new logic board + 8gb RAM, although they said it usually costs ~$500-600. I didn't really care as I'm covered with Squaretrade warranty. I picked up the laptop today, so far it's working fine.

7
Third Party Manufacturers / Re: Sony Medium Format Camera
« on: March 25, 2014, 09:47:27 PM »
If Canon or Nikon released a $5000 MF camera, I'd consider buying it. But I wouldn't invest $5000 in Sony, as few years later they'll decide it's not going anywhere and stop maintaining these cameras.

8
If it helps with your answer: 
  • Besides the 70-200, I use a 5D3 with a 24-70 F/4 IS, 28 F/2.8 IS, 40 F/2.8, 50 F/1.4, 100 F/2.8L IS and a 2x T/C.
  • Enthusiast only -- not a pro.

I appreciate the guidance!

- A

Since you don't have 85L yet, 135L will be great for half body portrait. It's sharp and the bokeh is smooth.

I'm shooting with 2 bodies. My most use combo are: 24-70 II + 70-200 f2.8 IS II and 50L + 135L(when I need some extra speed for indoor).

Why would he spend extra $700-800 for 135L if he can get sharp half-body portraits with nice bokeh using his 70-200?

9
I think this is one of the most common questions Canon shooters will have. Half of people here will say they stopped using 70-200 when they purchased 135L, and vice versa. Honestly, I don't think you'll use 135L that often, as the images from both lenses are great. I bet you won't notice any marked difference, especially if you don't print.

I agree with one of the responses below. If you're looking for a unique look, save for 85 1.2ii. That's what I'm doing now. Keep in mind too that there may be some newer lenses at 135 focal length released this year.

By the way, I think you can't get 135L at this cheap price anymore. It has been sold out, but may get restocked.


10
I have exactly the same issue with my early 2011 Macbook Pro 15", i7, 8 gb RAM and 512 SSD. Started having this issue around 3 weeks ago or so. I looked at the pictures posted on that link you provided and they look similar to mine. Do you see something like this? Apple said it's corrupted RAM but I doubt it.

11
Pricewatch Deals / Re: New Lens Rebates From Canon USA
« on: March 02, 2014, 10:22:08 PM »
Of course... two weeks AFTER I get the 135/2L...

If you got it new from Adorama, B&H, Amazon etc., call the customer support and ask them to match the price and credit back to you.

Double dip will be awesome, please...  :) but I doubt they'll offer it.

12
Third Party Manufacturers / Re: Minolta 58 f1.2?
« on: February 16, 2014, 01:28:09 AM »
I believe Minolta lenses require an adapter with an optical lens which will allow infinity focus. Obviously this lens will degrade the image ... some will degrade it quite a bit. You might consider instead a Nikkor 55/1.2 MF that requires a simple non-optical adapter. I have one of these on my 6D and the results, bokeh, etc. are superb. The Nikkor lens will easily fit your budget.


They do, but Jim Buchanan (http://www.jimbuchananspace.com/Camera_Services.html) is converting the mount of the lens to fit into the EOS mount. So you don't really need an adapter, and thus the image quality won't be affected, at least in theory. Nikon 55 f1.2 is a great lens too, I really liked the images taken with it! But it'll require the adapter, so in this case the IQ will most likely be affected adversely.

13
Third Party Manufacturers / Minolta 58 f1.2?
« on: February 15, 2014, 10:50:38 PM »
Hello guys! Has anybody used Minolta 58 f1.2 manual focus lens on Canon FF DSLRs? I'm not a big fan of 50mm focal length, just find it a little boring. Thus, I don't want to spend a lot of money paying $1000+. But I still think it's good to have the lens of this focal length in the bag. So, I went over many images of the old legendary Minolta 58 f1.2 and I really like bokeh on this lens, and it's ~$350-500. So, the question is whether or not any of you guys ever used this lens? Would you buy it for occasional use or it's better to save money and get something else? Thank you.

14
Third Party Manufacturers / Re: Oh neat, a Nikon 300f2 (1981)
« on: February 14, 2014, 09:35:24 AM »
Thank you for the list :) I haven't heard of over half of those lenses!


You're welcome  :) You can see some of these and other lenses being sold on ebay once in a while. But I don't think the quality of images will be good, though. Canon 5200mm f14.0 is more or less known, there is a nice video on Youtube about it. This lens together with Canon 2000mm f11.0 and 800mm f3.8 were manufactured specifically for the Summer Olympics in LA in 1984. I guess that's why they all have long focal lengths.

I can't think how narrow depth of field of Nikon 85 1.0 is  :o Here's this lens http://homepage2.nifty.com/akiyanroom/redbook-e/repro/repro1pon.html

I'm actually curious how much it'd cost Canon/Nikon/Zeiss etc. to make a special order lens. So, let's say if someone rich and a little crazy wants to get 100 1.0 or something similar, would the manufacturer do that?  :o

15
Third Party Manufacturers / Re: Oh neat, a Nikon 300f2 (1981)
« on: February 13, 2014, 11:30:14 PM »
There are actually quite a few truly unique lenses designed for regular photography purposes. To name:
- Canon 65mm f0.75
- Repro Nikkor 85mm f1.0 Supersonic Macro Lens
- Canon 50mm f0.95
- Canon 5200mm f14.0
- Canon 2000mm f11.0
- Canon 800mm f3.8
- APO NIKKOR Nikon 1780mm f14.0 Ultra Large Format
- Samyang 650-1300 f8-16.0 Tele Zoom Manual Focus Lens
- ZEISS Apo Sonnar T* 1700mm f4.0 (for medium format, weighs 560 pounds)
- Zeiss 400mm f1.5
- Repro Nikkor 170mm f1.4

There are also many unique lenses used for medical/military/astronomy purposes, which you can't use in the regular SLR cameras. For example:
- Some old Soviet lenses Iskra 72mm f0.65 and 20 f0.5
- Zeiss Fernobiektiv 28000mm and ZEISS JENA IR-OBJEKTIV 720mm f/2.0.
- Leitz Canada M-Mount 90mm f1.0 Elcan from US Navy
- Balcar Elliptar 235mm f1.0

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