Samyang 50 f1.2 in 2014 :)

D1N0 · 08-20-2014, 12:09 PM

Originally posted by ElJamoquio

Honestly I'm not going to purchase a non-AF lens at or above 50mm.

Actually it is harder to focus with a wide angle mf than with a tele.

ElJamoquio · 08-20-2014, 12:48 PM

Originally posted by D1N0

Actually it is harder to focus with a wide angle mf than with a tele.

To get precise focus, yes.

A lot of the time, when I use a 200mm lens, I want a given 5 cm to be in focus.

A lot of the time, when I use a 20mm lens, I want a given 50,000 cm to be in focus.

stevebrot · 08-20-2014, 03:44 PM

Originally posted by D1N0

schrödingers cat. Is it alive or is it dead. It's both!

...in or out of box or what box?! (Vivitar, Rokinon, Samyang, Bower, <put your name here>...)

Steve

---------- Post added 08-20-14 at 03:46 PM ----------

Originally posted by ElJamoquio

Honestly I'm not going to purchase a non-AF lens at or above 50mm.

You would do well to not purchase an AF lens with an f/1.2 maximum aperture regardless of focal length. No current dSLR has an AF system capable of precise performance with a lens that fast.

Steve

Na Horuk · 08-21-2014, 04:12 PM

Originally posted by stevebrot

You would do well to not purchase an AF lens with an f/1.2 maximum aperture regardless of focal length. No current dSLR has an AF system capable of precise performance with a lens that fast.

Yep. And the stock focusing screen might also be inaccurate, so its best to buy a third party focusing screen specifically for fast primes

ElJamoquio · 08-21-2014, 05:05 PM

Originally posted by Na Horuk

Yep. And the stock focusing screen might also be inaccurate, so its best to buy a third party focusing screen specifically for fast primes

Already done. Plus I have live view.

**Digitalis** · 08-21-2014, 05:46 PM

Originally posted by Na Horuk

And the stock focusing screen might also be inaccurate, so its best to buy a third party focusing screen specifically for fast primes

I have been using the stock screen and the SMCP-K 50mm f/1.2 without problem - though I will admit the O-ME3 viewfinder magnifier has been an indispensable accessory.

ElJamoquio · 08-21-2014, 07:16 PM

Got that too. I don't think it matters that much, but it helps a tiny bit.

thibs · 08-22-2014, 12:41 AM

Ah, I don't think I'll need to change the default screen of all those manual focus Pentaxes I use

Oh I could even use it on my DSLR ! (yeah, I know perspective is a bit different for me).

**Digitalis** · 08-22-2014, 04:24 AM

The other reason why I don't change my focusing screen is because third party ones nearly always mess with spot metering - which I use quite a bit.

thibs · 08-22-2014, 04:47 AM

Originally posted by Digitalis

The other reason why I don't change my focusing screen is because third party ones nearly always mess with spot metering - which I use quite a bit.

I admit, this is also a reason (for my DSLRs). I now always use a spotmeter with the 4x5 cameras so I have problems with anything but spot when doing serious work.
Of course I can use the spotmeter but well... that would a shame

**Digitalis** · 08-22-2014, 05:26 AM

Originally posted by thibs

I now always use a spotmeter with the 4x5 cameras so I have problems with anything but spot when doing serious work.

I use spotmeters for my 8X10 and 4X5 cameras too.

D1N0 · 08-22-2014, 05:32 AM

My focussing screen was front focussed. Very frustrating when shooting manually. Good enough for AF, pentax must have thought. Putting in a katzeye did not help except for front focussing more accurately. I had to replace the shim under (really above) the focussing screen for a thinner one. I find that the split prism is not very accurate. Too hard to see whether it is perfectly aligned. The micro prisms work better. More often then not I just focus around the entire inner circle on the matte... For a 1.2 lens i might get one of those canon screens with more accurate DOF rendering (I believe it is about F2 instead of F2.8).

thibs · 08-22-2014, 06:33 AM

Originally posted by Digitalis

I use spotmeters for my 8X10 and 4X5 cameras too.

I wouldn't have thought you'd use anything else

---------- Post added 22-08-14 at 14:34 ----------

Originally posted by D1N0

My focussing screen was front focussed. Very frustrating when shooting manually. Good enough for AF, pentax must have thought. Putting in a katzeye did not help except for front focussing more accurately. I had to replace the shim under (really above) the focussing screen for a thinner one. I find that the split prism is not very accurate. Too hard to see whether it is perfectly aligned. The micro prisms work better. More often then not I just focus around the entire inner circle on the matte... For a 1.2 lens i might get one of those canon screens with more accurate DOF rendering (I believe it is about F2 instead of F2.8).

That's too bad

I guess modern DSLRs really aren't made for manual focus anymore at all.

D1N0 · 08-22-2014, 07:43 AM

I could use live view of course, but it is a bit laggy and I am just not used to it. Focus peaking is not very well implemented on the K-5 yet (zooming in, loosing your view on composition). Zoom out again and you are sure to have lost your focus unless working on a tripod. A well i'll just wait for the FF or get a Sony A7 for my manual glass.

carrrlangas · 08-22-2014, 07:59 AM

Originally posted by Digitalis

The other reason why I don't change my focusing screen is because third party ones nearly always mess with spot metering - which I use quite a bit.

Do you have experience with the Canon EE-S screen? does it affect spot metering, I got used to it quite a bit too.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Trip to Africa in 2014 - what lens/camera?	audiodoc	Pentax SLR Lens Discussion	71	02-22-2013 09:41 PM
Portait lens - Pentax 50mm f1.2 (K version) or Samyang 85mm f1.4	Damon	Pentax SLR Lens Discussion	17	01-21-2013 01:35 AM
Rikenon 50 f1.7 (P/K) vs Super Takumar 50 f1.4 (M42), which is better?	fanofcc	Pentax SLR Lens Discussion	15	09-15-2012 11:58 AM
Samyang 24mm f1.4	kevinschoenmakers	Pentax News and Rumors	46	08-19-2011 08:23 AM

08-20-2014, 12:09 PM	#91
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802	Originally posted by ElJamoquio Honestly I'm not going to purchase a non-AF lens at or above 50mm. Actually it is harder to focus with a wide angle mf than with a tele.

08-20-2014, 12:48 PM	#92
ElJamoquio Veteran Member Join Date: Feb 2011 Posts: 4,873	Originally posted by D1N0 Actually it is harder to focus with a wide angle mf than with a tele. To get precise focus, yes. A lot of the time, when I use a 200mm lens, I want a given 5 cm to be in focus. A lot of the time, when I use a 20mm lens, I want a given 50,000 cm to be in focus.

08-20-2014, 03:44 PM	#93
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by D1N0 schrödingers cat. Is it alive or is it dead. It's both! ...in or out of box or what box?! (Vivitar, Rokinon, Samyang, Bower, <put your name here>...) Steve ---------- Post added 08-20-14 at 03:46 PM ---------- Originally posted by ElJamoquio Honestly I'm not going to purchase a non-AF lens at or above 50mm. You would do well to not purchase an AF lens with an f/1.2 maximum aperture regardless of focal length. No current dSLR has an AF system capable of precise performance with a lens that fast. Steve

08-21-2014, 04:12 PM	#94
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	Originally posted by stevebrot You would do well to not purchase an AF lens with an f/1.2 maximum aperture regardless of focal length. No current dSLR has an AF system capable of precise performance with a lens that fast. Yep. And the stock focusing screen might also be inaccurate, so its best to buy a third party focusing screen specifically for fast primes

08-21-2014, 05:05 PM	#95
ElJamoquio Veteran Member Join Date: Feb 2011 Posts: 4,873	Originally posted by Na Horuk Yep. And the stock focusing screen might also be inaccurate, so its best to buy a third party focusing screen specifically for fast primes Already done. Plus I have live view.

08-21-2014, 05:46 PM	#96
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Originally posted by Na Horuk And the stock focusing screen might also be inaccurate, so its best to buy a third party focusing screen specifically for fast primes I have been using the stock screen and the SMCP-K 50mm f/1.2 without problem - though I will admit the O-ME3 viewfinder magnifier has been an indispensable accessory.

08-21-2014, 07:16 PM	#97
ElJamoquio Veteran Member Join Date: Feb 2011 Posts: 4,873	Got that too. I don't think it matters that much, but it helps a tiny bit.

08-22-2014, 12:41 AM	#98
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Ah, I don't think I'll need to change the default screen of all those manual focus Pentaxes I use Oh I could even use it on my DSLR ! (yeah, I know perspective is a bit different for me).

08-22-2014, 04:24 AM	#99
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	The other reason why I don't change my focusing screen is because third party ones nearly always mess with spot metering - which I use quite a bit.

08-22-2014, 04:47 AM	#100
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Originally posted by Digitalis The other reason why I don't change my focusing screen is because third party ones nearly always mess with spot metering - which I use quite a bit. I admit, this is also a reason (for my DSLRs). I now always use a spotmeter with the 4x5 cameras so I have problems with anything but spot when doing serious work. Of course I can use the spotmeter but well... that would a shame

Thread Tools	Search this Thread
	Search this Thread: Advanced Search

08-22-2014, 05:26 AM	#101
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Originally posted by thibs I now always use a spotmeter with the 4x5 cameras so I have problems with anything but spot when doing serious work. I use spotmeters for my 8X10 and 4X5 cameras too.

08-22-2014, 05:32 AM	#102
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802	My focussing screen was front focussed. Very frustrating when shooting manually. Good enough for AF, pentax must have thought. Putting in a katzeye did not help except for front focussing more accurately. I had to replace the shim under (really above) the focussing screen for a thinner one. I find that the split prism is not very accurate. Too hard to see whether it is perfectly aligned. The micro prisms work better. More often then not I just focus around the entire inner circle on the matte... For a 1.2 lens i might get one of those canon screens with more accurate DOF rendering (I believe it is about F2 instead of F2.8).

08-22-2014, 06:33 AM	#103
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Originally posted by Digitalis I use spotmeters for my 8X10 and 4X5 cameras too. I wouldn't have thought you'd use anything else ---------- Post added 22-08-14 at 14:34 ---------- Originally posted by D1N0 My focussing screen was front focussed. Very frustrating when shooting manually. Good enough for AF, pentax must have thought. Putting in a katzeye did not help except for front focussing more accurately. I had to replace the shim under (really above) the focussing screen for a thinner one. I find that the split prism is not very accurate. Too hard to see whether it is perfectly aligned. The micro prisms work better. More often then not I just focus around the entire inner circle on the matte... For a 1.2 lens i might get one of those canon screens with more accurate DOF rendering (I believe it is about F2 instead of F2.8). That's too bad I guess modern DSLRs really aren't made for manual focus anymore at all.

08-22-2014, 07:43 AM	#104
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802	I could use live view of course, but it is a bit laggy and I am just not used to it. Focus peaking is not very well implemented on the K-5 yet (zooming in, loosing your view on composition). Zoom out again and you are sure to have lost your focus unless working on a tripod. A well i'll just wait for the FF or get a Sony A7 for my manual glass.

08-22-2014, 07:59 AM	#105
carrrlangas Veteran Member Join Date: Mar 2012 Location: Joensuu (Finland) Photos: Gallery Posts: 1,761	Originally posted by Digitalis The other reason why I don't change my focusing screen is because third party ones nearly always mess with spot metering - which I use quite a bit. Do you have experience with the Canon EE-S screen? does it affect spot metering, I got used to it quite a bit too.