May 19, 2013, 02:20:22 AM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Artifex

Pages: 1 [2] 3 4
16
Third Party Manufacturers / Re: New 6D and M42 lenses capability.
« on: April 15, 2013, 03:35:01 PM »
This might sound pretty stupid but I rather ask.
I just receive my 6D. I tried to mount different lens, including my Helios 44-2. I was able to focus to infinity with all of them without problem. I am wondering if I understand right. I mounted the lens while on the closest focusing distance, then slowly focus toward the infinity and never notice resistance. Is this how you check for mirror issues? If I take a photo at infinity with the Helios 44-2, will the mirror slam into the back of the lens?
Thanks a lot!

It's nothing so dramatic.  What will happen (typically towards infinity focus), is that after taking the picture the mirror will hang and the viewfinder will go dark.  Bringing the focus back will typically release it.  It probably does almost no damage, but do it repetitively and you would start to get some fine dust from the edge of the mirror on your sensor.  I've had mirror hang many times before but never done any appreciable damage.

If you have one that doesn't focus to infinity, you can get around that by shooting in Live View mode before you focus to infinity.  Just be sure to back the focus back off before disabling Live View (at which time the mirror will go down).

Thank you again! I just tried with both SMC Pentax-M 28mm f/2.8 and 50mm f/1.7. Sadly, neither works a infinity.  :(

Are these K mount lenses?  I have the M42 SMC Takumar 28mm f/3.5 and the SMC Tak 55mm f/1.8 and both work perfectly

Sorry, I forgot to specify; they are K mount lens.

17
Third Party Manufacturers / Re: New 6D and M42 lenses capability.
« on: April 15, 2013, 02:44:58 PM »
This might sound pretty stupid but I rather ask.
I just receive my 6D. I tried to mount different lens, including my Helios 44-2. I was able to focus to infinity with all of them without problem. I am wondering if I understand right. I mounted the lens while on the closest focusing distance, then slowly focus toward the infinity and never notice resistance. Is this how you check for mirror issues? If I take a photo at infinity with the Helios 44-2, will the mirror slam into the back of the lens?
Thanks a lot!

It's nothing so dramatic.  What will happen (typically towards infinity focus), is that after taking the picture the mirror will hang and the viewfinder will go dark.  Bringing the focus back will typically release it.  It probably does almost no damage, but do it repetitively and you would start to get some fine dust from the edge of the mirror on your sensor.  I've had mirror hang many times before but never done any appreciable damage.

If you have one that doesn't focus to infinity, you can get around that by shooting in Live View mode before you focus to infinity.  Just be sure to back the focus back off before disabling Live View (at which time the mirror will go down).

Thank you again! I just tried with both SMC Pentax-M 28mm f/2.8 and 50mm f/1.7. Sadly, neither works a infinity.  :(

18
Third Party Manufacturers / Re: New 6D and M42 lenses capability.
« on: April 15, 2013, 12:54:19 PM »
This might sound pretty stupid but I rather ask.
I just receive my 6D. I tried to mount different lens, including my Helios 44-2. I was able to focus to infinity with all of them without problem. I am wondering if I understand right. I mounted the lens while on the closest focusing distance, then slowly focus toward the infinity and never notice resistance. Is this how you check for mirror issues? If I take a photo at infinity with the Helios 44-2, will the mirror slam into the back of the lens?
Thanks a lot!

19
EOS Bodies - For Video / Re: What's that accessory in the picture?
« on: April 12, 2013, 10:25:00 AM »
I'm not sure, but I think the military guy just threw it on his head!  :P

20
Lens Gallery / Re: Helios 44-2 58mm f/2.0 M42
« on: April 11, 2013, 11:33:55 PM »
Guess I'll contribute too  :P
Caution, this is a bit of an abstract picture!

21
Third Party Manufacturers / Re: New 6D and M42 lenses capability.
« on: April 11, 2013, 10:01:54 PM »
Thanks a lot!  :D
I just ordered the 6D and can't wait to go back to full frame (I started with a Pentax K-1000 film body).
I will be able to see how it handle the SMC Pentax-M 28mm f/2.8, 50mm f/1.7 and 50 f/4 Macro. Since I really love working on 50mm lens, I am a bit afraid that the 50mm f/1.7 have mirror issues, that's why I asked this question.

22
Lens Gallery / Re: Helios 44-2 58mm f/2.0 M42
« on: April 11, 2013, 09:56:26 PM »
A really awesome lens! Bought one a few weeks ago, I am really impress by the results!
P.S: Great pictures!

23
Third Party Manufacturers / Re: New 6D and M42 lenses capability.
« on: April 11, 2013, 04:59:00 PM »
Anybody ever tried the Takumar or Super-Takumar 50 f/1.4 on the 6D? Does it have mirror issues? How good are those lens? Thanks!

24
Its very difficult to design a ultra wide angle lens and get sharp undistorted edges, and still sell it at a popular price.  Most users of rebels would not consider a high price for a truly excellent lens.
The new15mm Zeiss is easily the best.
http://www.bhphotovideo.com/c/product/850101-REG/Zeiss_1964831_Distagon_T_15mm_f_2_8.html


I totally agree with you.
However, if you are looking for a very sharp and even cheaper ultra wide angle lens, you can check for the Samyang 14mm f/2.8. The biggest down sides? Very heavy "mustache" distortion, no possibility to put filters and the fact that it is a manual lens, though at 14mm, autofocus is not very useful, especially if you use hyoerfocals. If you can live with those, you can have a 14mm almost as sharp as the 2360$ Canon 14mm, but for about 400$.

 
Not mine:  Its easily the worst lens I've ever owned, and I've had some really bad ones.  My Canon 15mm FE is much sharper.
 



It probably was a bad copy, as Samyang's quality control is probably the worst I have ever seen. First copy I got couldn't focus farther than 1,5m. I returned it and got a great one, very sharp straight from f/2.8 and stunning at f/5.6.

25
Its very difficult to design a ultra wide angle lens and get sharp undistorted edges, and still sell it at a popular price.  Most users of rebels would not consider a high price for a truly excellent lens.
The new15mm Zeiss is easily the best.
http://www.bhphotovideo.com/c/product/850101-REG/Zeiss_1964831_Distagon_T_15mm_f_2_8.html


I totally agree with you.
However, if you are looking for a very sharp and even cheaper ultra wide angle lens, you can check for the Samyang 14mm f/2.8. The biggest down sides? Very heavy "mustache" distortion, no possibility to put filters and the fact that it is a manual lens, though at 14mm, autofocus is not very useful, especially if you use hyoerfocals. If you can live with those, you can have a 14mm almost as sharp as the 2360$ Canon 14mm, but for about 400$.

26
EOS Bodies / Re: What is Laforet teasing?
« on: April 02, 2013, 10:57:20 PM »
My guess would be an affordable cinelens line.

nah, no way
My guess would be an affordable cinelens line.

yeah comes directly after an affordable lamborghini on my list...  ;D

Ahahaha, I know it is a bold guess, but apart from a camera, lenses are one of the only things all videographers use. I don't really see what "revolution" could be made for lightening or sound recording, and gyros are not used in all styles of video. However, there actually exist a affordable cinelens line, made by Samyang.

Another thing I can think of would be some sort of Canon-made Metabone Speed Booster. It is some sort of reverse teleconverter, that enable the use of FF lens on smaller sensors with there native focal length and add one f-stop by shrinking the image circle it produce. However, I really don't see Canon, or any other major camera maker as a matter of fact, make such a product, as it would certainly hurt their full-frame sell, in favor of lower-end bodies. Moreover, they would have to find a way to work around the required lens to sensor distance to make it work.

27
EOS Bodies / Re: What is Laforet teasing?
« on: April 02, 2013, 11:49:18 AM »
My guess would be an affordable cinelens line.

28
Canon General / Re: Goodbye Cruel Canon
« on: March 31, 2013, 11:56:32 PM »
Pfffff, your system is crippled, as it clearly lacks a high enough number of autofocus points.

29
EOS Bodies / Re: Favorite or Preferred Film body?
« on: March 29, 2013, 08:20:57 PM »
Honestly, I can only answer Pentax K-1000! This camera is a literally a tank; it's all mechanical, all metal. You could definitly take any joke about the Nokia phone from the internet and replace it by the Pentax K-1000!  ;) The only down side is that it is a bit hard to put the film in it the right way. After 30+ years and thousand of photos, it still looks and feels new.

30
Third Party Manufacturers / Re: Quality Manual Lenses
« on: March 28, 2013, 05:07:49 PM »
Samyang products are very high quality product at very reasonable price, so I would definitely recommend those lens, especially for video, if you have the money. You can also find good optics at very low price if you check on the old SMC Pentax-M, Takumar and Super-Takumar lens on ebay. You just need a 5$ adaptor to fit them on your 60d.

Pages: 1 [2] 3 4