RICOH ANNOUNCES AVAILABILITY OF HD PENTAX-D FA★50mm F1.4 SDM AW STAR-SERIES LENS

normhead · 07-22-2018, 09:12 AM

Of my last 2700 keepers, not one is taken at ƒ22 or ƒ32.

I have done in the past a few ƒ22 macros, but this isn't a macro lens. Which in away is quite sad, given that this lens appears to be a lot sharper than the 50 macro. You're going to be left with the decision, 50 macro, or shoot with this lens at minimum focusing distance and enlarge.

dcpropilot · 07-22-2018, 09:16 AM - **1 Like**

Norm like this?

You Tube

normhead · 07-22-2018, 09:17 AM

Originally posted by dcpropilot

Norm like this? These go to 11.mpg - YouTube

That's the one.

The DoF guide on my FA 50 shows ƒ16 will keep everything in focus from 8 feet to infinity using a hyperfocal setting. You can get to 6 feet with ƒ22.

You give up close half your resolution to go to f22, it's truly a desperation measure.

dcpropilot · 07-22-2018, 09:24 AM

ha, ha

Kunzite · 07-22-2018, 09:30 AM

Originally posted by normhead

I can seriously Iive without ƒ22 or 32 on 50.

Same here.

**ffking** · 07-22-2018, 10:23 AM

Originally posted by pres589

I feel like, and I'm sure someone will tell me I'm wrong, cameras on which this lens might be used have fast enough shutter speeds available that it's not going to be a major loss OR the user should be expected to bring an ND filter or some such method by which to use f16 acceptably when they might otherwise want f22. Also agreed that stopping down that far should be considered last resort due to the impact on image quality. It's just something I noticed.

New era, basically.

I think you're right - also, the only other reason for small apertures - increased dof - can now be achieved - and exceeded -by focus stacking - there's little need to stop down so far that diffraction undermines the reason why you bought a lens of this quality/cost.

beholder3 · 07-22-2018, 11:49 AM - **1 Like**

Originally posted by normhead

You give up close half your resolution to go to f22, it's truly a desperation measure.

Now go check maximum res on a $40 18-55 kit lens and compare that (knowing that the APSCkhit does somehow cover FF from about 35-55mm).

I can't believe grown up people actually discuss this about a F1.4 lens.

**clickclick** · 07-22-2018, 12:42 PM

Originally posted by dcpropilot

Why 16 versus 22? Less aperture blade weight?

Probably to maintain image quality by not letting the user go to an f stop where more severe diffraction is setting in.

normhead · 07-22-2018, 01:55 PM

Originally posted by beholder3

Now go check maximum res on a $40 18-55 kit lens and compare that (knowing that the APSCkhit does somehow cover FF from about 35-55mm).

I can't believe grown up people actually discuss this about a F1.4 lens.

There are so few modern lenses, one has to consider each of these lenses for multiple uses. You certainly have to discuss it if the only option. I guess I can wait for a 1.7. What do you think? 10 years, twenty, easy to say but not very practical in the Pentax world. It's the only modern prime, forget about the only modern 50. I

**pres589** · 07-22-2018, 02:30 PM

To reiterate, I didn't bring up the f16 min aperture of this lens because I would use f22 if it were there or would miss it or anything like that. I'm just noting a change from previous and how this lens "feels" like something very different from past offerings. Even the DA*55 goes down to f22.

normhead · 07-22-2018, 04:28 PM

Originally posted by pres589

To reiterate, I didn't bring up the f16 min aperture of this lens because I would use f22 if it were there or would miss it or anything like that. I'm just noting a change from previous and how this lens "feels" like something very different from past offerings. Even the DA*55 goes down to f22.

Just put the 1.4 on it and you have 70mm ƒ22.

Not a Number · 07-22-2018, 05:17 PM - **4 Likes**

The Eeyores™ are always squeaking about diffraction at f22 and greater. Now The Eeyores™ squeak about the lack of f22 or greater. I'll bet most of the people buying this lens are buying it because it is a modern 50mm with f/1.4 with wonderful bokeh and will be shooting mostly at the wider range and probably won't even miss the f22 setting.

Yeah, it's break from the past. So is it not being a pancake lens. So is the new focusing ring motor and Kaf4 aperture control. So is not having a 49 or 52mm filter size.

**monochrome** · 07-22-2018, 05:47 PM

Originally posted by Not a Number

The Eeyores™ are always squeaking about diffraction at f22 and greater. Now The Eeyores™ squeak about the lack of f22 or greater. I'll bet most of the people buying this lens are buying it because it is a modern 50mm with f/1.4 with wonderful bokeh and will be shooting mostly at the wider range and probably won't even miss the f22 setting.

Yeah, it's break from the past. So is it not being a pancake lens. So is the new focusing ring motor and Kaf4 aperture control. So is not having a 49 or 52mm filter size.

I honestly - honestly - don’t remember using a smaller aperture than f/16 on any lens, ever. What would you shoot with a 50 at f/22?

**FozzFoster** · 07-22-2018, 06:42 PM - **1 Like**

Originally posted by monochrome

What would you shoot with a 50 at f/22?

I've shot a bit at f/22 on a 50 while doing night photography long exposure with light painting.. I needed to stop down all the way to get dark enough/ long enough shutter speed to finish light painting my subjects... but I guess that's a very special case and not everyone will be needing to stop down to f/22 regularly.

**clackers** · 07-22-2018, 07:21 PM - **2 Likes**

Originally posted by FozzFoster

I've shot a bit at f/22 on a 50 while doing night photography long exposure with light painting.. I needed to stop down all the way to get dark enough/ long enough shutter speed to finish light painting my subjects... but I guess that's a very special case and not everyone will be needing to stop down to f/22 regularly.

ND filters are your friend, FF.

07-22-2018, 09:17 AM	#543
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Originally posted by dcpropilot Norm like this? These go to 11.mpg - YouTube That's the one. The DoF guide on my FA 50 shows ƒ16 will keep everything in focus from 8 feet to infinity using a hyperfocal setting. You can get to 6 feet with ƒ22. You give up close half your resolution to go to f22, it's truly a desperation measure. Last edited by normhead; 07-22-2018 at 01:52 PM.

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07-22-2018, 09:12 AM	#541
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Of my last 2700 keepers, not one is taken at ƒ22 or ƒ32. I have done in the past a few ƒ22 macros, but this isn't a macro lens. Which in away is quite sad, given that this lens appears to be a lot sharper than the 50 macro. You're going to be left with the decision, 50 macro, or shoot with this lens at minimum focusing distance and enlarge.

07-22-2018, 09:24 AM	#544
dcpropilot Veteran Member Join Date: Mar 2010 Location: Vermont Photos: Gallery \| Albums Posts: 941	ha, ha

07-22-2018, 09:30 AM	#545
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	Originally posted by normhead I can seriously Iive without ƒ22 or 32 on 50. Same here.

07-22-2018, 10:23 AM	#546
ffking Site Supporter Join Date: Nov 2015 Location: Old South Wales Posts: 6,038	Originally posted by pres589 I feel like, and I'm sure someone will tell me I'm wrong, cameras on which this lens might be used have fast enough shutter speeds available that it's not going to be a major loss OR the user should be expected to bring an ND filter or some such method by which to use f16 acceptably when they might otherwise want f22. Also agreed that stopping down that far should be considered last resort due to the impact on image quality. It's just something I noticed. New era, basically. I think you're right - also, the only other reason for small apertures - increased dof - can now be achieved - and exceeded -by focus stacking - there's little need to stop down so far that diffraction undermines the reason why you bought a lens of this quality/cost.

07-22-2018, 11:49 AM - 1 Like	#547
beholder3 Pentaxian Join Date: Dec 2011 Posts: 3,112	Originally posted by normhead You give up close half your resolution to go to f22, it's truly a desperation measure. Now go check maximum res on a $40 18-55 kit lens and compare that (knowing that the APSCkhit does somehow cover FF from about 35-55mm). I can't believe grown up people actually discuss this about a F1.4 lens.

07-22-2018, 12:42 PM	#548
clickclick Loyal Site Supporter Join Date: May 2016 Location: East Coast Posts: 2,903	Originally posted by dcpropilot Why 16 versus 22? Less aperture blade weight? Probably to maintain image quality by not letting the user go to an f stop where more severe diffraction is setting in.

07-22-2018, 01:55 PM	#549
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Originally posted by beholder3 Now go check maximum res on a $40 18-55 kit lens and compare that (knowing that the APSCkhit does somehow cover FF from about 35-55mm). I can't believe grown up people actually discuss this about a F1.4 lens. There are so few modern lenses, one has to consider each of these lenses for multiple uses. You certainly have to discuss it if the only option. I guess I can wait for a 1.7. What do you think? 10 years, twenty, easy to say but not very practical in the Pentax world. It's the only modern prime, forget about the only modern 50. I

07-22-2018, 02:30 PM	#550
pres589 Site Supporter Join Date: Jan 2014 Location: Wichita, KS Photos: Albums Posts: 4,529	To reiterate, I didn't bring up the f16 min aperture of this lens because I would use f22 if it were there or would miss it or anything like that. I'm just noting a change from previous and how this lens "feels" like something very different from past offerings. Even the DA*55 goes down to f22.

07-22-2018, 04:28 PM	#551
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Originally posted by pres589 To reiterate, I didn't bring up the f16 min aperture of this lens because I would use f22 if it were there or would miss it or anything like that. I'm just noting a change from previous and how this lens "feels" like something very different from past offerings. Even the DA*55 goes down to f22. Just put the 1.4 on it and you have 70mm ƒ22.

07-22-2018, 05:17 PM - 4 Likes	#552
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 10,526	The Eeyores™ are always squeaking about diffraction at f22 and greater. Now The Eeyores™ squeak about the lack of f22 or greater. I'll bet most of the people buying this lens are buying it because it is a modern 50mm with f/1.4 with wonderful bokeh and will be shooting mostly at the wider range and probably won't even miss the f22 setting. Yeah, it's break from the past. So is it not being a pancake lens. So is the new focusing ring motor and Kaf4 aperture control. So is not having a 49 or 52mm filter size.

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07-22-2018, 05:47 PM	#553
monochrome Loyal Site Supporter Join Date: Mar 2008 Location: Working From Home Photos: Gallery \| Albums Posts: 26,276	Originally posted by Not a Number The Eeyores™ are always squeaking about diffraction at f22 and greater. Now The Eeyores™ squeak about the lack of f22 or greater. I'll bet most of the people buying this lens are buying it because it is a modern 50mm with f/1.4 with wonderful bokeh and will be shooting mostly at the wider range and probably won't even miss the f22 setting. Yeah, it's break from the past. So is it not being a pancake lens. So is the new focusing ring motor and Kaf4 aperture control. So is not having a 49 or 52mm filter size. I honestly - honestly - don’t remember using a smaller aperture than f/16 on any lens, ever. What would you shoot with a 50 at f/22?

07-22-2018, 06:42 PM - 1 Like	#554
FozzFoster Custom User Title Join Date: Jan 2016 Location: Alberta Photos: Albums Posts: 6,806	Originally posted by monochrome What would you shoot with a 50 at f/22? I've shot a bit at f/22 on a 50 while doing night photography long exposure with light painting.. I needed to stop down all the way to get dark enough/ long enough shutter speed to finish light painting my subjects... but I guess that's a very special case and not everyone will be needing to stop down to f/22 regularly.

07-22-2018, 07:21 PM - 2 Likes	#555
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	Originally posted by FozzFoster I've shot a bit at f/22 on a 50 while doing night photography long exposure with light painting.. I needed to stop down all the way to get dark enough/ long enough shutter speed to finish light painting my subjects... but I guess that's a very special case and not everyone will be needing to stop down to f/22 regularly. ND filters are your friend, FF.