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06-27-2018, 02:56 AM   #46
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looking forward to seeing results from this lens, any news on its arrival ?

06-27-2018, 07:35 AM - 1 Like   #47
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QuoteOriginally posted by thibs Quote
Multiple patents? You mean multiple designs in the single patent?
This is pretty standard practice in patents. Others were like that too.
Believe me, it's finalized.
Then I feel better and need to really put away the cash then! I do want this lens and am pretty excited about it coming in the near future.

---------- Post added 06-27-18 at 07:36 AM ----------

QuoteOriginally posted by Rondec Quote
Pentax just wants to make sure that someone doesn't take their design and tweak it just a little bit and then release their own version of the DA *11-18. You do this by listing several variations of the lens. The actual design of the lens is certainly final at this point and it is just a matter of getting a production line set and turning out adequate numbers to get them to the market.
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06-27-2018, 08:32 AM - 1 Like   #48
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Thanks for sharing this!

I'm impatiently waiting for this lens. Whereas I do have UWA covered by many lenses (DA10-17, Sig8-16, Samy10/2.8), none of these take filters. Actually my DA15/4 is the widest available that takes filters (though not practical since my current filters are all 77mm), and my Samy16/2 is the widest that I frequently use filters on. I would like to go wider with filters though (esp long exposures and IR), and this 11-18/2.8 is on my list just for that exactly. Well, that and the f/2.8 (astro) and the WR (outdoor hiking and travel)... I would have to use a step-down adapter to begin with, but that won't take away too much of the FoV I think (=hope), esp since I go for square crops most of the time.

Wim
06-27-2018, 11:22 AM   #49
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QuoteOriginally posted by Ishpuini Quote
I'm impatiently waiting for this lens. Whereas I do have UWA covered by many lenses (DA10-17, Sig8-16, Samy10/2.8), none of these take filters. Actually my DA15/4 is the widest available that takes filters (though not practical since my current filters are all 77mm), and my Samy16/2 is the widest that I frequently use filters on.
Try Sigma 10-20/3.5 - it takes filtres

06-27-2018, 01:02 PM - 1 Like   #50
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Do you guys review all the new patents or do you get notices of things you are interested in? I am always amazed at how quickly these obscure filings get noticed.
06-27-2018, 01:21 PM - 1 Like   #51
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I'll get this lens once the K-3II replacement comes out. It's probably going to be a lot nicer than my old Tokina 11-16mm f/2.8 that I had for my Sony A200.
06-27-2018, 02:26 PM   #52
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QuoteOriginally posted by x4rd Quote
Try Sigma 10-20/3.5 - it takes filtres
...yeah, the 82mm, king-size variety!

The 4-5.6 should take 77mm, which are the ones @Ishpuini has.
06-27-2018, 04:09 PM   #53
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QuoteOriginally posted by LensBeginner Quote
...yeah, the 82mm, king-size variety!

The 4-5.6 should take 77mm, which are the ones @Ishpuini has.
Why is the face of this lens so large - the lens opening is only about 45mm, so there is a wide ring of plastic/metal/whatever.

06-27-2018, 06:42 PM   #54
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So badly can't wait for this lens!
06-28-2018, 01:01 AM   #55
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QuoteOriginally posted by reh321 Quote
Why is the face of this lens so large - the lens opening is only about 45mm, so there is a wide ring of plastic/metal/whatever.
Yup, but it kinda makes sense, since it's quite prone to vignetting: -2.16 EV at 10mm f/3.5 according to Lenstip review.
It's a tradeoff, no doubt, but I think it's necessary.
06-28-2018, 09:47 AM - 1 Like   #56
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QuoteOriginally posted by reh321 Quote
Why is the face of this lens so large - the lens opening is only about 45mm, so there is a wide ring of plastic/metal/whatever.
It's because of the FOV and bulging front element. Any UWA has this inconvenience. Either a ridiculously big screw on filter, or none at all. And then you have to use these giant 150/165 square filters with complex adapters.

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06-28-2018, 10:05 AM   #57
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QuoteOriginally posted by reh321 Quote
Why is the face of this lens so large - the lens opening is only about 45mm, so there is a wide ring of plastic/metal/whatever.
The 12mm 2.8 I have uses 95mm screw in CPLs. So I consider 82mm filters small to medium range.

It all is about the FoV angles from the entrance pupil.
06-28-2018, 03:29 PM   #58
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QuoteOriginally posted by torashi Quote
It's because of the FOV and bulging front element. Any UWA has this inconvenience. Either a ridiculously big screw on filter, or none at all. And then you have to use these giant 150/165 square filters with complex adapters.

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I have it in my hand just now... it's not that bulging... nothing like the 8-16mm anyway. Which doens't take screw-on filters at all, as you said.
06-28-2018, 04:32 PM   #59
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QuoteOriginally posted by LensBeginner Quote
I have it in my hand just now... it's not that bulging... nothing like the 8-16mm anyway. Which doens't take screw-on filters at all, as you said.
Care to share... For a while?
06-28-2018, 11:58 PM - 1 Like   #60
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QuoteOriginally posted by x4rd Quote
Try Sigma 10-20/3.5 - it takes filtres
Indeed it does, but I don't want to replace my Sig8-16 with another Sigma. Whereas I'm happy with both the 8-16 and the 180 macro, these are the only Sigma's in a long series that have pleased me. I actually don't want to buy Sigma anymore. Besides, if I upgrade, I want WR/AW and f/2.8 as well. Gotta justify the investment... ;-)


QuoteOriginally posted by LensBeginner Quote
...yeah, the 82mm, king-size variety!

The 4-5.6 should take 77mm, which are the ones @Ishpuini has.
Well, the 11-18 may be even bigger... But as I said, a step-down adapter is OK for me, since I crop square most of the time anyway, which does away with vignetting problems.

Tx! Wim
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