D-FA 100-300mm f/4

Venom3300 · 05-19-2016, 05:45 AM

Originally posted by jpzk

That would be some beast !!

Going back to when I had a Sigma 100-300/4 ... that was big enough.

Sigma alreafy has such a beast: a 120-300 2.8 for canon and nikon mounts.

I dont think weight is an issue for most professional sports shooters. And price wouldnt be a hige deal for many of them.

pete-tarmigan · 05-19-2016, 05:51 AM

Originally posted by Venom3300

I dont think weight is an issue for most professional sports shooters. And price wouldnt be a hige deal for many of them.

Price isn't a big deal to them because Canon and Nikon lend big glass to them free of charge.

**jatrax** · 05-19-2016, 08:03 AM

Originally posted by Caat

Does anyone have any idea of Pentax could keep it to the same size as the DA*?

I don't think anyone can say for sure. It might depend on their design priorities. On the DFA*70-200 and DFA 150-450 they seem to have lowered the priority for small and light. If they do the same on a 100-300 f/4 it could be quite large.

zapp · 07-03-2016, 09:56 AM - **1 Like**

I am waiting for a 2.8/300 plus 2x TC. After a 85, 35, 24 and a pentax design 24-70.
4/100-300 is just in between everything somehow. Get a 70-200/2.8 on APS-C for quite similar reach.

Venom3300 · 07-03-2016, 02:33 PM

Originally posted by pete-tarmigan

Price isn't a big deal to them because Canon and Nikon lend big glass to them free of charge.

Then I wonder whos buying all those 120-300 2.8 sigma lenses.

Kunzite · 07-03-2016, 02:42 PM

Reminder: this patent is for the D FA* 70-200 f/2.8 (just like the "35-80 f/4" patent was for the D FA 28-105). It's the 5th embodiment from the egami article (19 elements in 16 groups, 2 ED elements, 2 super ED elements - anomalous dispersion glass is not mentioned).
I wouldn't expect any Pentax 100-300 f/4, not so soon after the D FA 150-450, anyway. There are other niches to fill.

Na Horuk · 07-03-2016, 02:51 PM

In another thread (this one) I speculated something similar:

Originally posted by Na Horuk

f4: 35-80mm, 80-300mm (speculation)
f2.8: 15-30mm, 24-70mm, 70-200mm
variable: 28-105mm F3.5-5.6 , 150-450mm F4.5-5.6

The only thing that is surprising me with the constant f4 zoom patents is that they are really big lenses, with lots of elements. Would expect them to be the "affordable" or "compact" lineup, but I guess Ricoh has its plans.
That said, a patent is not yet a product. Any number of reasons why to file a patent. Will only take it seriously when Ricoh officially announces it

Kunzite · 07-03-2016, 11:14 PM

Oh, but this patent was made into a product - see my previous post.

pete-tarmigan · 07-06-2016, 07:55 AM

Originally posted by Venom3300

Then I wonder whos buying all those 120-300 2.8 sigma lenses.

Well-healed enthusiasts. The 1% thinks nothing of dropping that kind of money on a hobby.

**bladerunner6** · 07-06-2016, 09:18 AM

Originally posted by pete-tarmigan

Price isn't a big deal to them because Canon and Nikon lend big glass to them free of charge.

Really?

Where did you read this, please?

I am fascinated.

Thanks.

pete-tarmigan · 07-06-2016, 10:16 AM

Originally posted by bladerunner6

Really?

Where did you read this, please?

I am fascinated.

Thanks.

Standard practise for professionals officially sponsored by Canon and Nikon.

sculptor666 · 07-07-2016, 08:27 AM

and for non-sponsored professionals, canon has a program that lets you borrow lenses(once) for free and free cleaning, etc... pretty good deal for $100/yr. Personalized Support for the Imaging Professional

K David · 07-07-2016, 10:47 AM - **1 Like**

If this is badged as a 100-300 f/4 instead of the 102.00-293.70 f/4.1 that the patent listing says it is, I'm going to make a lot of noise about false advertising.

D1N0 · 07-07-2016, 10:57 AM

It is marketed as the D FA 70-200 F2.8 But according to the patent it is a 72.09-194 F2.9

**bladerunner6** · 07-08-2016, 02:44 AM

Thanks for the update about loaning lenses.

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05-19-2016, 05:45 AM	#31
Venom3300 Veteran Member Join Date: Jul 2014 Posts: 714	Originally posted by jpzk That would be some beast !! Going back to when I had a Sigma 100-300/4 ... that was big enough. Sigma alreafy has such a beast: a 120-300 2.8 for canon and nikon mounts. I dont think weight is an issue for most professional sports shooters. And price wouldnt be a hige deal for many of them.

05-19-2016, 05:51 AM	#32
pete-tarmigan Pentaxian Join Date: Apr 2009 Location: Conception Bay South, New-fun-land Photos: Gallery Posts: 1,094	Originally posted by Venom3300 I dont think weight is an issue for most professional sports shooters. And price wouldnt be a hige deal for many of them. Price isn't a big deal to them because Canon and Nikon lend big glass to them free of charge.

05-19-2016, 08:03 AM	#33
jatrax Site Supporter Join Date: May 2010 Location: Oregon Cascades Photos: Gallery \| Albums Posts: 11,454	Originally posted by Caat Does anyone have any idea of Pentax could keep it to the same size as the DA? I don't think anyone can say for sure. It might depend on their design priorities. On the DFA70-200 and DFA 150-450 they seem to have lowered the priority for small and light. If they do the same on a 100-300 f/4 it could be quite large.

07-03-2016, 09:56 AM - 1 Like	#34
zapp Pentaxian Join Date: Jul 2011 Posts: 1,135	I am waiting for a 2.8/300 plus 2x TC. After a 85, 35, 24 and a pentax design 24-70. 4/100-300 is just in between everything somehow. Get a 70-200/2.8 on APS-C for quite similar reach.

07-03-2016, 02:33 PM	#35
Venom3300 Veteran Member Join Date: Jul 2014 Posts: 714	Originally posted by pete-tarmigan Price isn't a big deal to them because Canon and Nikon lend big glass to them free of charge. Then I wonder whos buying all those 120-300 2.8 sigma lenses.

07-03-2016, 02:42 PM	#36
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 10,253	Reminder: this patent is for the D FA* 70-200 f/2.8 (just like the "35-80 f/4" patent was for the D FA 28-105). It's the 5th embodiment from the egami article (19 elements in 16 groups, 2 ED elements, 2 super ED elements - anomalous dispersion glass is not mentioned). I wouldn't expect any Pentax 100-300 f/4, not so soon after the D FA 150-450, anyway. There are other niches to fill.

07-03-2016, 02:51 PM	#37
Na Horuk Pentaxian Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,189	In another thread (this one) I speculated something similar: Originally posted by Na Horuk f4: 35-80mm, 80-300mm (speculation) f2.8: 15-30mm, 24-70mm, 70-200mm variable: 28-105mm F3.5-5.6 , 150-450mm F4.5-5.6 The only thing that is surprising me with the constant f4 zoom patents is that they are really big lenses, with lots of elements. Would expect them to be the "affordable" or "compact" lineup, but I guess Ricoh has its plans. That said, a patent is not yet a product. Any number of reasons why to file a patent. Will only take it seriously when Ricoh officially announces it

07-03-2016, 11:14 PM	#38
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 10,253	Oh, but this patent was made into a product - see my previous post.

07-06-2016, 07:55 AM	#39
pete-tarmigan Pentaxian Join Date: Apr 2009 Location: Conception Bay South, New-fun-land Photos: Gallery Posts: 1,094	Originally posted by Venom3300 Then I wonder whos buying all those 120-300 2.8 sigma lenses. Well-healed enthusiasts. The 1% thinks nothing of dropping that kind of money on a hobby.

07-06-2016, 09:18 AM	#40
bladerunner6 Loyal Site Supporter Join Date: Nov 2014 Photos: Albums Posts: 563	Originally posted by pete-tarmigan Price isn't a big deal to them because Canon and Nikon lend big glass to them free of charge. Really? Where did you read this, please? I am fascinated. Thanks.

07-06-2016, 10:16 AM	#41
pete-tarmigan Pentaxian Join Date: Apr 2009 Location: Conception Bay South, New-fun-land Photos: Gallery Posts: 1,094	Originally posted by bladerunner6 Really? Where did you read this, please? I am fascinated. Thanks. Standard practise for professionals officially sponsored by Canon and Nikon.

07-07-2016, 08:27 AM	#42
sculptor666 Pentaxian Join Date: Dec 2013 Location: PA Photos: Gallery Posts: 341	and for non-sponsored professionals, canon has a program that lets you borrow lenses(once) for free and free cleaning, etc... pretty good deal for $100/yr. Personalized Support for the Imaging Professional

07-07-2016, 10:47 AM - 1 Like	#43
K David Pentaxian Join Date: Oct 2012 Location: SF Bay Area Photos: Gallery Posts: 1,329	If this is badged as a 100-300 f/4 instead of the 102.00-293.70 f/4.1 that the patent listing says it is, I'm going to make a lot of noise about false advertising.

07-07-2016, 10:57 AM	#44
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 4,731	It is marketed as the D FA 70-200 F2.8 But according to the patent it is a 72.09-194 F2.9

07-08-2016, 02:44 AM	#45
bladerunner6 Loyal Site Supporter Join Date: Nov 2014 Photos: Albums Posts: 563	Thanks for the update about loaning lenses.