New Pentax leaf shutter 645 medium format lenses coming soon

**boriscleto** · 09-08-2014, 01:55 PM

Originally posted by JPT

"Game changer" isn't the worst. It's not as bad as "paradigm shift".

It's a game changer when the paradigm shifts without a clutch.

**monochrome** · 09-08-2014, 02:50 PM

Originally posted by boriscleto

It's a game changer when the paradigm shifts without a clutch.

Nah - only if it is time for a conversation.

**Digitalis** · 09-08-2014, 05:05 PM - **1 Like**

Originally posted by boriscleto

It's a game changer when the paradigm shifts without a clutch.

*facepalm*

mee · 09-08-2014, 05:10 PM

Originally posted by Digitalis

*facepalm*

More Synergy! More Synergy!!!! Stay in the swimlanes.. keep vertical on the bleeding edge!!

lytrytyr · 09-08-2014, 06:44 PM

Originally posted by Digitalis

Leaf shutters put some hefty constraints on how fast a lens can get. Copal, who have been the most common maker of leaf shutters only allow for f/2.2 lenses at the fastest.

Yet the humble Q01 manages f/1.9.

i83N · 09-08-2014, 10:26 PM

Why Leaf Shutter Lenses Matter

**Digitalis** · 09-09-2014, 12:24 AM - **1 Like**

Originally posted by i83N

Why Leaf Shutter Lenses Matter

"The Tool That Will Shape Photography in 2013"

interesting...so 2013 was supposed to be the year leaf shutters took photography by storm. The first experimental Leaf shutters were made in 1911.

Originally posted by lytrytyr

Yet the humble Q01 manages f/1.9.

You can't use that lens on a 645D.

Last edited by Digitalis; 09-09-2014 at 12:34 AM.

Uluru · 09-09-2014, 03:19 AM

Why they introduce leaf shutter lenses now?
During the last year, they have issued three new 645 lenses, without it. I mean, what the .... ?!?!
This rumour smells fishy and makes no sense. Or Ricoh's strategy and planning is worse than what we believed.

i83N · 09-09-2014, 03:35 AM

Originally posted by Uluru

Why they introduce leaf shutter lenses now?
During the last year, they have issued three new 645 lenses, without it. I mean, what the .... ?!?!
This rumour smells fishy and makes no sense. Or Ricoh's strategy and planning is worse than what we believed.

Because pentax flash sync is only 1/180sec which is to slow for studio work.

**Digitalis** · 09-09-2014, 04:40 AM

Originally posted by i83N

Because pentax flash sync is only 1/180sec which is to slow for studio work.

No, it isn't too slow. 1/180th is more than fast enough to work with under controlled indoor studio lighting. It is when you go outdoors and want to diminish ambient light while using strobes to illuminate your subjects - that is when sync speeds of 1/180th limit your capabilities.

i83N · 09-09-2014, 05:03 AM

Originally posted by Digitalis

No, it isn't too slow. 1/180th is more than fast enough to work with under controlled indoor studio lighting. It is when you go outdoors and want to diminish ambient light while using strobes to illuminate your subjects - that is when sync speeds of 1/180th limit your capabilities.

Ok, when I say studio I mean controlled light sources not native to location

Zygonyx · 09-09-2014, 06:44 AM

Originally posted by Digitalis

No, it isn't too slow. 1/180th is more than fast enough to work with under controlled indoor studio lighting. It is when you go outdoors and want to diminish ambient light while using strobes to illuminate your subjects - that is when sync speeds of 1/180th limit your capabilities.

+1
Although you still may need higher flash-synch speed in studio for hair or dress mouvements as well.

Nonetheless, if pentax want to achive serious digital MF market penetration they need to plug in their system quite a few jewels :
- Tilt-Shift
- Leaf-Shutter
- Fast =< f/2
- Fish-Eye
IMHO that's just commonsense.

Wired · 09-09-2014, 06:47 AM

Originally posted by Zygonyx

Obviously very good news.
Let's hope they also will adress the need of really fast fixed lenses ; the P645 system desperately needs f/2 lenses - look at the new Leica S 100mm f/2 that was leaked a few days ago...

Why?

Depth of field is so thin at f2.8 on a medium format camera I don't see the point, especially in a leaf shutter lens which would be most useful with bright enviornments or studio flash work where you would stop down anyways?

**Digitalis** · 09-09-2014, 06:52 AM

Originally posted by Zygonyx

Although you still may need higher flash-synch speed in studio for hair or dress mouvements as well.

That has more to do with the flash duration rather than sync speed.

Zygonyx · 09-09-2014, 07:04 AM

Originally posted by Wired

Why?

Depth of field is so thin at f2.8 on a medium format camera I don't see the point, especially in a leaf shutter lens which would be most useful with bright enviornments or studio flash work where you would stop down anyways?

Canikony supporters see the point because actually you may not get thinner depht of field with the P645 system than with any of their very fast f/1.2 and even f/1.4 primes.
Accessorily, "thin depth of field users" too

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09-08-2014, 01:55 PM	#16
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,475	Originally posted by JPT "Game changer" isn't the worst. It's not as bad as "paradigm shift". It's a game changer when the paradigm shifts without a clutch.

09-08-2014, 02:50 PM	#17
monochrome Loyal Site Supporter Join Date: Mar 2008 Location: Working From Home Photos: Gallery \| Albums Posts: 26,276	Originally posted by boriscleto It's a game changer when the paradigm shifts without a clutch. Nah - only if it is time for a conversation.

09-08-2014, 05:05 PM - 1 Like	#18
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Originally posted by boriscleto It's a game changer when the paradigm shifts without a clutch. facepalm

09-08-2014, 05:10 PM	#19
mee Veteran Member Join Date: May 2010 Posts: 7,403	Originally posted by Digitalis facepalm More Synergy! More Synergy!!!! Stay in the swimlanes.. keep vertical on the bleeding edge!!

09-08-2014, 06:44 PM	#20
lytrytyr Pentaxian Join Date: Nov 2011 Photos: Gallery \| Albums Posts: 4,310	Originally posted by Digitalis Leaf shutters put some hefty constraints on how fast a lens can get. Copal, who have been the most common maker of leaf shutters only allow for f/2.2 lenses at the fastest. Yet the humble Q01 manages f/1.9.

09-08-2014, 10:26 PM	#21
i83N Veteran Member Join Date: Mar 2009 Location: Lithuania Photos: Gallery Posts: 1,203 Original Poster	Why Leaf Shutter Lenses Matter

09-09-2014, 12:24 AM - 1 Like	#22
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Originally posted by i83N Why Leaf Shutter Lenses Matter "The Tool That Will Shape Photography in 2013" interesting...so 2013 was supposed to be the year leaf shutters took photography by storm. The first experimental Leaf shutters were made in 1911. Originally posted by lytrytyr Yet the humble Q01 manages f/1.9. You can't use that lens on a 645D. Last edited by Digitalis; 09-09-2014 at 12:34 AM.

09-09-2014, 03:19 AM	#23
Uluru Banned Join Date: May 2010 Location: Back to my Walkabout Creek Photos: Gallery \| Albums Posts: 2,535	Why they introduce leaf shutter lenses now? During the last year, they have issued three new 645 lenses, without it. I mean, what the .... ?!?! This rumour smells fishy and makes no sense. Or Ricoh's strategy and planning is worse than what we believed.

09-09-2014, 03:35 AM	#24
i83N Veteran Member Join Date: Mar 2009 Location: Lithuania Photos: Gallery Posts: 1,203 Original Poster	Originally posted by Uluru Why they introduce leaf shutter lenses now? During the last year, they have issued three new 645 lenses, without it. I mean, what the .... ?!?! This rumour smells fishy and makes no sense. Or Ricoh's strategy and planning is worse than what we believed. Because pentax flash sync is only 1/180sec which is to slow for studio work.

09-09-2014, 04:40 AM	#25
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Originally posted by i83N Because pentax flash sync is only 1/180sec which is to slow for studio work. No, it isn't too slow. 1/180th is more than fast enough to work with under controlled indoor studio lighting. It is when you go outdoors and want to diminish ambient light while using strobes to illuminate your subjects - that is when sync speeds of 1/180th limit your capabilities.

09-09-2014, 05:03 AM	#26
i83N Veteran Member Join Date: Mar 2009 Location: Lithuania Photos: Gallery Posts: 1,203 Original Poster	Originally posted by Digitalis No, it isn't too slow. 1/180th is more than fast enough to work with under controlled indoor studio lighting. It is when you go outdoors and want to diminish ambient light while using strobes to illuminate your subjects - that is when sync speeds of 1/180th limit your capabilities. Ok, when I say studio I mean controlled light sources not native to location

09-09-2014, 06:44 AM	#27
Zygonyx Pentaxian Join Date: Jun 2011 Location: Ile de France Posts: 4,033	Originally posted by Digitalis No, it isn't too slow. 1/180th is more than fast enough to work with under controlled indoor studio lighting. It is when you go outdoors and want to diminish ambient light while using strobes to illuminate your subjects - that is when sync speeds of 1/180th limit your capabilities. +1 Although you still may need higher flash-synch speed in studio for hair or dress mouvements as well. Nonetheless, if pentax want to achive serious digital MF market penetration they need to plug in their system quite a few jewels : - Tilt-Shift - Leaf-Shutter - Fast =< f/2 - Fish-Eye IMHO that's just commonsense.

09-09-2014, 06:47 AM	#28
Wired Veteran Member Join Date: Aug 2009 Location: Edmonton, AB Photos: Gallery \| Albums Posts: 2,519	Originally posted by Zygonyx Obviously very good news. Let's hope they also will adress the need of really fast fixed lenses ; the P645 system desperately needs f/2 lenses - look at the new Leica S 100mm f/2 that was leaked a few days ago... Why? Depth of field is so thin at f2.8 on a medium format camera I don't see the point, especially in a leaf shutter lens which would be most useful with bright enviornments or studio flash work where you would stop down anyways?

09-09-2014, 06:52 AM	#29
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Originally posted by Zygonyx Although you still may need higher flash-synch speed in studio for hair or dress mouvements as well. That has more to do with the flash duration rather than sync speed.

09-09-2014, 07:04 AM	#30
Zygonyx Pentaxian Join Date: Jun 2011 Location: Ile de France Posts: 4,033	Originally posted by Wired Why? Depth of field is so thin at f2.8 on a medium format camera I don't see the point, especially in a leaf shutter lens which would be most useful with bright enviornments or studio flash work where you would stop down anyways? Canikony supporters see the point because actually you may not get thinner depht of field with the P645 system than with any of their very fast f/1.2 and even f/1.4 primes. Accessorily, "thin depth of field users" too