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09-19-2016, 01:17 PM   #1
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Why Sigma, Samyang stopped introducing K mount lenses?

Sigma just announced the 85mm F1.4 Art and 12-24 F4 Art, none of which will offer K mount. The recently announced samyang 14mm F2.4 doesn't have K-mount either. Are there reasons for this from Pentax? I just feel so disappointed that my K-1 can't find some of the best glasses.

09-19-2016, 01:24 PM   #2
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Hopefully, the best glass will be in Pentax brand.
09-19-2016, 01:31 PM   #3
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QuoteOriginally posted by mir156 Quote
Why Sigma, Samyang stopped introducing K mount lenses?
It is difficult to determine where Samyang is heading with their newest series. Notice that Nikon has been similarly "stiffed". As for Sigma, they have a recent tradition of not providing providing broad mount support across their product line. Canon, for example, is often left out in the cold. The reasoning is apparently driven by market research and sector competition. There is no return on investment if market is small and projected penetration is unlikely to offset costs.


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09-19-2016, 01:41 PM   #4
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This has been discussed many times and, simply put, the market size for Pentax lenses is too small to be profitable. you can read this interview with Sigma CEO explaining this: CEO explains why so few K-mount...

Or, to make a long story short:
QuoteQuote:
Yamaki san expressed what I believe was very genuine regret that he isn't able to bring more of their lenses to the Pentax mount, but can only do so for the most popular models, that will generate enough demand to be produced sustainably.
Hopefully, the introduction of KAF4 lenses may help make it easier for third party manufacturers.

09-19-2016, 01:42 PM   #5
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QuoteOriginally posted by stevebrot Quote
It is difficult to determine where Samyang is heading with their newest series. Notice that Nikon has been similarly "stiffed". As for Sigma, they have a recent tradition of not providing providing broad mount support across their product line. Canon, for example, is often left out in the cold. The reasoning is apparently driven by market research and sector competition. There is no return on investment if market is small and projected penetration is unlikely to offset costs.


Steve
Agree with the reasoning. I was too optimistic when buying into the pentax system. In the foreseeable future the Irix 15mm F2.4 is my only hope for a decent UWA lens.

---------- Post added 09-19-16 at 01:44 PM ----------

QuoteOriginally posted by CarlJF Quote
This has been discussed many times and, simply put, the market size for Pentax lenses is too small to be profitable. you can read this interview with Sigma CEO explaining this: CEO explains why so few K-mount...

Or, to make a long story short:

Hopefully, the introduction of KAF4 lenses may help make it easier for third party manufacturers.
Thanks for the link.
09-19-2016, 01:55 PM   #6
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QuoteOriginally posted by mir156 Quote
The recently announced samyang 14mm F2.4 doesn't have K-mount either.
Are you sure this is forever? Because some Samyang primes were released in other mounts first, not K-mount, but some months later, K-mount was brought out as well.
09-19-2016, 01:57 PM   #7
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Note that Samyang DID recently announce the 20mm f/1.8 in K-mount. It's just this new "premium" line that has (so far) only been announced for a handful of mounts.

I just posted this in another thread, but Adam put it so well in a thread about the Samyang:

QuoteOriginally posted by Adam Quote
There seems to be a clear trend regarding third-party K-mount support: cheaper consumer lenses are typically made available, whereas high-end niche lenses aren't. Must be a reason behind this
There's not enough of us, and not enough of us that are willing to pay for high-end glass.
09-19-2016, 01:59 PM   #8
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QuoteOriginally posted by CarlJF Quote
Hopefully, the introduction of KAF4 lenses may help make it easier for third party manufacturers.
KAF4 temporarily shrinks the already small k-mount market until many more of us purchase new bodies. If KAF3 didn't have enough users for Sigma and Samyang, KAF4 won't be any better unless Pentax recruits many new users.

09-19-2016, 02:19 PM   #9
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QuoteOriginally posted by Na Horuk Quote
Are you sure this is forever? Because some Samyang primes were released in other mounts first, not K-mount, but some months later, K-mount was brought out as well.
Hope they add K mount to the 14mm F2.4 which has amazing MTF.
09-19-2016, 02:49 PM   #10
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Not enough demand / too few sales.

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09-19-2016, 03:10 PM   #11
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QuoteOriginally posted by CarlJF Quote
This has been discussed many times and, simply put, the market size for Pentax lenses is too small to be profitable. you can read this interview with Sigma CEO explaining this: CEO explains why so few K-mount...

Or, to make a long story short:

Hopefully, the introduction of KAF4 lenses may help make it easier for third party manufacturers.
I agree - small market share and trouble adapting the lenses to the K-mount due to manual aperture coupling (a problem that with Nikon they accept because they make more money with them) seem to be the reasons Sigma has stopped support for Pentax. The aperture problem has been solved now and this may start to have an impact on Sigma's decisions once the majority of customers actually own cameras that support KAF4 (e.g. the K3 doesn't), and the K-1 hasn't been out long enough yet for Sigma to be able to gauge what it will do to demand for Sigma lenses.

Maybe in one or two years time, Pentax' market share and demand will be high enough for Sigma to justify a a return to the K-mount.
09-19-2016, 03:49 PM   #12
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This is a shame for the 85... I was looking forward to only use my 77 to start a fire in the wilderness if needed...
09-19-2016, 03:53 PM   #13
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Pentax will probably have it's own 85mm under glass at photokina. Sigma wants to know what the demand for their new 85mm is first. If enough then maybe a K-mount.
09-19-2016, 08:12 PM   #14
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QuoteOriginally posted by FantasticMrFox Quote
I agree - small market share and trouble adapting the lenses to the K-mount due to manual aperture coupling (a problem that with Nikon they accept because they make more money with them) seem to be the reasons Sigma has stopped support for Pentax.
For what it's worth, Sigma has been dealing with the aperture "problem" for about over 30 years. They have a high level of expertise implementing the feature.


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09-20-2016, 07:54 AM   #15
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QuoteOriginally posted by FantasticMrFox Quote
manual aperture coupling (a problem that with Nikon they accept
QuoteOriginally posted by stevebrot Quote
For what it's worth, Sigma has been dealing with the aperture "problem" for about over 30 years. They have a high level of expertise implementing the feature.
If I'm reading correctly, the three latest Sigmas use an electromagnetic aperture in Nikon mount as well. The "problem" of mechanical aperture may just be an excuse, but they appear to have dropped it as quickly as possible. (Maybe all the people who were patient enough to deal with the fiddly mechanical bits have retired?)
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