[OoKU]

https://ipforce.jp/patent-jp-P_A1-2022-117775

There are 9 design cases in this patent, including 21 / 2.4, 19 / 2.4, 16 / 2.4 and 14 / 2.4 full frame ultra wide angle fixed focus lens patents.


https://ipforce.jp/patent-jp-P_A1-2022-117775

There are 9 design cases in this patent, basically 21 / 2.4 design, and another 19 / 3.5 design.

These two patents are the design patents of HD pentax-d FA 21mm f2.4ed limited DC WR, but there are also some interesting design cases, such as 14 / 2.4 and 19 / 3.5.

In addition, according to the dfa21 patent, the materials are very extravagant.
9 out of 11 have the effect of fading.
11, only one ordinary glass.

Attached Images

   

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Last edited by OoKU; 08-12-2022 at 12:58 AM.

[BROO]

How long before we know something about the WA * lens on the roadmap?

[thibs]

Is this really an announcement, sorry to sound negative, in fact I'm excited

[Fogel70]

Is this really an announcement, sorry to sound negative, in fact I'm excited

I would not call it an announcement. Companies apply for patent, but they usually have no reason to announce them to the public
And anyway in general it is probably 1 in 5 or less of the applied patents that actually reach the market.

Ricoh may have made several designs studies to prioritize which one they should release, that ended up with the D FA 21/2.4.
I believe that is normal procedure when it comes to lens design.

Edit:
But it is nice to see documentation on activity from Ricoh's R&D.

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Last edited by Fogel70; 08-12-2022 at 01:23 AM.

[Kunzite]

Is this really an announcement, sorry to sound negative, in fact I'm excited

It's more or less "the patent for the D FA 21mm Limited", thus not indicative of any new lens I'm afraid.

[house]

https://ipforce.jp/patent-jp-P_A1-2022-117775

There are 9 design cases in this patent, including 21 / 2.4, 19 / 2.4, 16 / 2.4 and 14 / 2.4 full frame ultra wide angle fixed focus lens patents.


https://ipforce.jp/patent-jp-P_A1-2022-117775

There are 9 design cases in this patent, basically 21 / 2.4 design, and another 19 / 3.5 design.

These two patents are the design patents of HD pentax-d FA 21mm f2.4ed limited DC WR, but there are also some interesting design cases, such as 14 / 2.4 and 19 / 3.5.

In addition, according to the dfa21 patent, the materials are very extravagant.
9 out of 11 have the effect of fading.
11, only one ordinary glass.

Thanks for the info! Lets hope none of the Pentax milc proponents gets a whiff of the short flange distance version there will be endless speculation and refusal to accept that it's probably just to "lock" in the design.

Interesting about the amount of special glass. This means the marketing block diagram doesn't show all the special glass? May also be the main fact driving the high price.

[Rondec]

It's more or less "the patent for the D FA 21mm Limited", thus not indicative of any new lens I'm afraid.

Right. This is the DFA 21 f2.4 -- the fact that there are other cases listed is not important.

[biz-engineer]

Right. This is the DFA 21 f2.4 -- the fact that there are other cases listed is not important.

On the contrary, all patents are important as they block competitors from doing the same designs, can eventually bring money via licensing , transfer of patents , and so patents count as intangible assets in the due diligence of an M&A, hence the usefulness of having all possible patents filed.

[Rondec]

On the contrary, all patents are important as they block competitors from doing the same designs, can eventually bring money via licensing , transfer of patents , and so patents count as intangible assets in the due diligence of an M&A, hence the usefulness of having all possible patents filed.

True. I meant that often there will be a patent for a lens like a 70-200 f2.8 that will include examples like a 100-400 and people often jump on the examples as possible future Pentax lens releases, only they never happen. They allow Pentax to challenge someone who comes up with a similar lens formula and if Pentax would decide to release one of the other examples, they could without fear of a competitor challenging them -- but they never do seem to release any of the other examples listed in the patent application.

[Digitalis]

I admit to having thought that the 3 part body of the DFA21 could easily be adapted for wider optics. A D-FA14mm f/2.4 wouldn't be much of a stretch although the hood component of the lens barrel would need to undergo some modifications to mitigate flare, but for the most part the external design could remain unaltered with minimal need for re-tooling.

[Belnan]

Glad to see Pentax is still active. Lots of interesting patents, I think an ultra wide would be a very desirable lens.

[house]

I admit to having thought that the 3 part body of the DFA21 could easily be adapted for wider optics. A D-FA14mm f/2.4 wouldn't be much of a stretch although the hood component of the lens barrel would need to undergo some modifications to mitigate flare, but for the most part the external design could remain unaltered with minimal need for re-tooling.

oh noes! don't feed the speculators!

[Mistral75]

Note that:

• the two examples of a 16mm f/2.4 wouldn't suit a K mount body (backfocus = 37.9mm or 36.7mm)
• the example of a 14mm f/2.4 would only suit a mirrorless camera or a compact camera (backfocus = 20.8mm).

[OoKU]

No,still DSLR. BF is not the same in every lens.
Mirrorless wide angle lens backfocus more close,for example ,RF28 1.8 is 12.16mm.

[pimpim]

Note that:

• the two examples of a 16mm f/2.4 wouldn't suit a K mount body (backfocus = 37.9mm or 36.7mm)
• the example of a 14mm f/2.4 would only suit a mirrorless camera or a compact camera (backfocus = 20.8mm).

Would be cool if Pentax were to release some mirrorless lenses. Especially at 14mm to please the vlogging crowd with some Pentax lens magic