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Mistral75 · 10-18-2019, 08:02 AM

Indeed people are eagerly waiting for the K-New and I'm sure the first months of sales will be a success. The difficulty is more to maintain the momentum during the product's lifespan. I remember when the long-awaited K-1 was launched: during the first months the numbers were fantastic, fare above Ricoh Imaging France's expectations, then in August sales went down as expected (seasonality effect) but they never fully recovered afterwards. During the Salon de la Photo in November Ricoh Imaging France representatives were clearly disappointed with the brevity of the K-1's commercial success, even though they had then sold more cameras that expected.

**UncleVanya** · 10-18-2019, 08:03 AM

Originally posted by fs999

I want a DFA 100mm F2.0 !

What for? A 135 f2.8 with modern design seems more useful. But your purpose may be aligned to your needs.

**fs999** · 10-18-2019, 08:13 AM

Originally posted by UncleVanya

What for? A 135 f2.8 with modern design seems more useful. But your purpose may be aligned to your needs.

Yes

**Erictator** · 10-18-2019, 11:55 AM - **3 Likes**

Originally posted by fs999

Yes

I have used my old Tak 135 F3.5 w/ext tubes and it makes a dandy macro... I haven't gotten around to trying my Tak 200mm F4, but if I wanted a fast macro, we have enough 100mm I think, I would like a 180mm or 200mm macro again, at a reasonable price with fast AF, not typical macro speed AF. Doesn't have to be a speed demon stop wise, F4 would be fine, going to stop down a long tele macro anyway or DOF would be silly thin. Just enough Fstop for bright focusing and AF, so F2.8 to F4.0 range would be fine for me... F3.5 happy medium? Heh.

Pentax K-1 135.0 mm w/25mm Ext Tube, 1/2000 iso100

Pentikonian · 10-18-2019, 12:36 PM

I would love a modern 135/2 or 2.8 - but I would also be interested in looking at a 70-200/4 offering.

**Erictator** · 10-18-2019, 01:10 PM

Originally posted by fs999

I want a DFA 100mm F2.0 !

Hey Frederic, I just noticed this in classifieds... no DFA, but you like manual focus, right? He is even in your neck of the woods.

Zeiss Makro-Planar T* 100 mm f/2.0 ZK - PentaxForums.com

See, I am there for you bud.

Eric

**fs999** · 10-18-2019, 02:17 PM

Originally posted by Erictator

I have used my old Tak 135 F3.5 w/ext tubes and it makes a dandy macro... I haven't gotten around to trying my Tak 200mm F4, but if I wanted a fast macro, we have enough 100mm I think, I would like a 180mm or 200mm macro again, at a reasonable price with fast AF, not typical macro speed AF. Doesn't have to be a speed demon stop wise, F4 would be fine, going to stop down a long tele macro anyway or DOF would be silly thin. Just enough Fstop for bright focusing and AF, so F2.8 to F4.0 range would be fine for me... F3.5 happy medium? Heh.

Hohoho

I didn't mean a macro lens but a portrait lens...

Originally posted by Erictator

Hey Frederic, I just noticed this in classifieds... no DFA, but you like manual focus, right? He is even in your neck of the woods.

Zeiss Makro-Planar T* 100 mm f/2.0 ZK - PentaxForums.com

See, I am there for you bud.
Eric

Look at this beauty

Mistral75 · 10-18-2019, 02:28 PM

Originally posted by fs999

I want a DFA 100mm F2.0 !

Just buy a Canon EF 100mm f/2 USM and a Canon camera or a Yongnuo YN 100mm f/2 and a Canon or a Nikon camera.

**UncleVanya** · 10-18-2019, 02:32 PM

Originally posted by fs999

I want a DFA 100mm F2.0 !

Laowa 105mm f/2 Smooth Trans Focus (STF) – LAOWA Camera Lenses

Would this help ease the pain of waiting? Manual focus is the only downside.

---------- Post added 10-18-19 at 05:33 PM ----------

Originally posted by Mistral75

Just buy a Canon EF 100mm f/2 USM and a Canon camera or a Yongnuo YN 100mm f/2 and a Canon or a Nikon camera.

Again the Laowa 105mm f/2 Smooth Trans Focus (STF) – LAOWA Camera Lenses is a k mount solution without autofocus if that works.

Mistral75 · 10-18-2019, 02:40 PM

Originally posted by UncleVanya

Laowa 105mm f/2 Smooth Trans Focus (STF) – LAOWA Camera Lenses

Would this help ease the pain of waiting? Manual focus is the only downside.

---------- Post added 10-18-19 at 05:33 PM ----------

Again the Laowa 105mm f/2 Smooth Trans Focus (STF) – LAOWA Camera Lenses is a k mount solution without autofocus if that works.

Lenses with an apodisation element have a special rendering of the out-of-focus areas but why not?

**UncleVanya** · 10-18-2019, 02:42 PM

Originally posted by Mistral75

Lenses with an apodisation element have a special rendering of the out-of-focus areas but why not?

Right. Since the mention of portrait use came up I figured the stf type lens would fit the need.

Mistral75 · 10-18-2019, 02:48 PM

In addition, the Laowa 105mm f/2 STF is f/2 but only T/3.2, which may or may not be a problem.

**UncleVanya** · 10-18-2019, 02:58 PM

Originally posted by Mistral75

In addition, the Laowa 105mm f/2 STF is f/2 but only T/3.2, which may or may not be a problem.

Wow 1.2 stops of loss relative to T stop is high. I had no idea.

Mistral75 · 10-18-2019, 03:12 PM

That's because of the apodisation filter.

Apodisation derives from the ancient Greek: α, which means without (as in asynchronous, arrhythmia, atone, etc.), and πούς ('pous'), genitive ποδός ('podos'), the foot (as in podiatrist, chiropodist, etc.) = that removes the foot. The filter has the effect of cutting off the foot (= the outer part) of the Airy disc.

In doing so it reduces the amount of light transmitted by the lens, hence the large difference between f-stop and T-stop.

wkraus · 10-18-2019, 03:23 PM

Originally posted by Mistral75

Just buy a Canon EF 100mm f/2 USM and a Canon camera or a Yongnuo YN 100mm f/2 and a Canon or a Nikon camera.

I’d take one too but only the real thing.

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10-18-2019, 08:02 AM	#646
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	Indeed people are eagerly waiting for the K-New and I'm sure the first months of sales will be a success. The difficulty is more to maintain the momentum during the product's lifespan. I remember when the long-awaited K-1 was launched: during the first months the numbers were fantastic, fare above Ricoh Imaging France's expectations, then in August sales went down as expected (seasonality effect) but they never fully recovered afterwards. During the Salon de la Photo in November Ricoh Imaging France representatives were clearly disappointed with the brevity of the K-1's commercial success, even though they had then sold more cameras that expected.

10-18-2019, 08:03 AM	#647
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,472	Originally posted by fs999 I want a DFA 100mm F2.0 ! What for? A 135 f2.8 with modern design seems more useful. But your purpose may be aligned to your needs.

10-18-2019, 08:13 AM	#648
fs999 Loyal Site Supporter Join Date: Jul 2008 Location: Luxembourg Photos: Gallery Posts: 8,650	Originally posted by UncleVanya What for? A 135 f2.8 with modern design seems more useful. But your purpose may be aligned to your needs. Yes

10-18-2019, 11:55 AM - 3 Likes	#649
Erictator Site Supporter Join Date: Jul 2011 Photos: Gallery \| Albums Posts: 3,352	Originally posted by fs999 Yes I have used my old Tak 135 F3.5 w/ext tubes and it makes a dandy macro... I haven't gotten around to trying my Tak 200mm F4, but if I wanted a fast macro, we have enough 100mm I think, I would like a 180mm or 200mm macro again, at a reasonable price with fast AF, not typical macro speed AF. Doesn't have to be a speed demon stop wise, F4 would be fine, going to stop down a long tele macro anyway or DOF would be silly thin. Just enough Fstop for bright focusing and AF, so F2.8 to F4.0 range would be fine for me... F3.5 happy medium? Heh. Pentax K-1 135.0 mm w/25mm Ext Tube, 1/2000 iso100

10-18-2019, 12:36 PM	#650
Pentikonian Pentaxian Join Date: Jul 2011 Location: Arizona Posts: 780	I would love a modern 135/2 or 2.8 - but I would also be interested in looking at a 70-200/4 offering.

10-18-2019, 01:10 PM	#651
Erictator Site Supporter Join Date: Jul 2011 Photos: Gallery \| Albums Posts: 3,352	Originally posted by fs999 I want a DFA 100mm F2.0 ! Hey Frederic, I just noticed this in classifieds... no DFA, but you like manual focus, right? He is even in your neck of the woods. Zeiss Makro-Planar T* 100 mm f/2.0 ZK - PentaxForums.com See, I am there for you bud. Eric

10-18-2019, 02:17 PM	#652
fs999 Loyal Site Supporter Join Date: Jul 2008 Location: Luxembourg Photos: Gallery Posts: 8,650	Originally posted by Erictator I have used my old Tak 135 F3.5 w/ext tubes and it makes a dandy macro... I haven't gotten around to trying my Tak 200mm F4, but if I wanted a fast macro, we have enough 100mm I think, I would like a 180mm or 200mm macro again, at a reasonable price with fast AF, not typical macro speed AF. Doesn't have to be a speed demon stop wise, F4 would be fine, going to stop down a long tele macro anyway or DOF would be silly thin. Just enough Fstop for bright focusing and AF, so F2.8 to F4.0 range would be fine for me... F3.5 happy medium? Heh. Hohoho I didn't mean a macro lens but a portrait lens... Originally posted by Erictator Hey Frederic, I just noticed this in classifieds... no DFA, but you like manual focus, right? He is even in your neck of the woods. Zeiss Makro-Planar T* 100 mm f/2.0 ZK - PentaxForums.com See, I am there for you bud. Eric Look at this beauty

10-18-2019, 02:28 PM	#653
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	Originally posted by fs999 I want a DFA 100mm F2.0 ! Just buy a Canon EF 100mm f/2 USM and a Canon camera or a Yongnuo YN 100mm f/2 and a Canon or a Nikon camera.

10-18-2019, 02:32 PM	#654
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,472	Originally posted by fs999 I want a DFA 100mm F2.0 ! Laowa 105mm f/2 Smooth Trans Focus (STF) – LAOWA Camera Lenses Would this help ease the pain of waiting? Manual focus is the only downside. ---------- Post added 10-18-19 at 05:33 PM ---------- Originally posted by Mistral75 Just buy a Canon EF 100mm f/2 USM and a Canon camera or a Yongnuo YN 100mm f/2 and a Canon or a Nikon camera. Again the Laowa 105mm f/2 Smooth Trans Focus (STF) – LAOWA Camera Lenses is a k mount solution without autofocus if that works.

10-18-2019, 02:40 PM	#655
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	Originally posted by UncleVanya Laowa 105mm f/2 Smooth Trans Focus (STF) – LAOWA Camera Lenses Would this help ease the pain of waiting? Manual focus is the only downside. ---------- Post added 10-18-19 at 05:33 PM ---------- Again the Laowa 105mm f/2 Smooth Trans Focus (STF) – LAOWA Camera Lenses is a k mount solution without autofocus if that works. Lenses with an apodisation element have a special rendering of the out-of-focus areas but why not?

10-18-2019, 02:42 PM	#656
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,472	Originally posted by Mistral75 Lenses with an apodisation element have a special rendering of the out-of-focus areas but why not? Right. Since the mention of portrait use came up I figured the stf type lens would fit the need.

10-18-2019, 02:48 PM	#657
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	In addition, the Laowa 105mm f/2 STF is f/2 but only T/3.2, which may or may not be a problem.

10-18-2019, 02:58 PM	#658
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,472	Originally posted by Mistral75 In addition, the Laowa 105mm f/2 STF is f/2 but only T/3.2, which may or may not be a problem. Wow 1.2 stops of loss relative to T stop is high. I had no idea.

10-18-2019, 03:12 PM	#659
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	That's because of the apodisation filter. Apodisation derives from the ancient Greek: α, which means without (as in asynchronous, arrhythmia, atone, etc.), and πούς ('pous'), genitive ποδός ('podos'), the foot (as in podiatrist, chiropodist, etc.) = that removes the foot. The filter has the effect of cutting off the foot (= the outer part) of the Airy disc. In doing so it reduces the amount of light transmitted by the lens, hence the large difference between f-stop and T-stop.

10-18-2019, 03:23 PM	#660
wkraus Pentaxian Join Date: Jan 2013 Location: Near Vienna, Austria Photos: Gallery Posts: 2,067	Originally posted by Mistral75 Just buy a Canon EF 100mm f/2 USM and a Canon camera or a Yongnuo YN 100mm f/2 and a Canon or a Nikon camera. I’d take one too but only the real thing.

New zoom 70-200 F4

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