Sigma stops K-Mount support

Kunzite · 10-05-2019, 02:38 PM

Is that an exclusive kit for shooting atmospheric atomic tests? Don't forget the sun screen!

totsmuyco · 10-05-2019, 04:30 PM

Originally posted by xmeda

55-300 + 1.4TC..

hmm..

hm...

heh...

Have you really tried using it at that set up? How's the image quality?

xmeda · 10-05-2019, 06:24 PM

Originally posted by Mistral75

Do you see anything in the viewfinder with this combination or is it completely black?

wel... it is very dark, but with daylight the live-view is still somewhat usable. Thermal waves in air are worse problem..

xmeda · 10-05-2019, 06:30 PM

Originally posted by MikeyBugs95

So that's a 1.7+1.7x+1.5x+1.4x? So assuming that the 50-500 is zoomed all the way out to 500, that's a 3034mm ... F... 38?

For when you really want to see what that man's T-shirt is saying waayyyyyyyy over in the next state.

1.7 + 1.7 + 1.5 + 2 = 4335mm (6500mm Equiv of FF) F58

Now I have another two 2x TC.. so maybe it is time for new test.. but I need some really bright target... for 17340mm F232.. Something like 5s exposure on daylight with iso800 and tripod won't be enough.. maybe some packs with sand.

totsmuyco · 10-05-2019, 07:26 PM

Originally posted by xmeda

1.7 + 1.7 + 1.5 + 2 = 4335mm (6500mm Equiv of FF) F58

Now I have another two 2x TC.. so maybe it is time for new test.. but I need some really bright target... for 17340mm F232.. Something like 5s exposure on daylight with iso800 and tripod won't be enough.. maybe some packs with sand.

Good luck with your test. Remember you have 3 connected items. Hold your camera and lens properly. Also show us some samples.

**Serkevan** · 10-06-2019, 04:49 AM - **1 Like**

Jesus that thing is huge. Point it at the sun and you might even get away with a normal exposure time

MikeyBugs95 · 10-06-2019, 06:14 AM

I wonder if, since Sigma now won't be producing lenses in K-mount, Pentax and Sigma would partner for a few lenses like what they did with the 24-70 and 15-30. It's a pipe dream but a nice thought I guess.

Kunzite · 10-06-2019, 07:04 AM

Originally posted by MikeyBugs95

I wonder if, since Sigma now won't be producing lenses in K-mount, Pentax and Sigma would partner for a few lenses like what they did with the 24-70 and 15-30. It's a pipe dream but a nice thought I guess.

You mean Pentax and Tamron, right?
There isn't much in Tamron 's lineup which I'd like to see rebadged as a Pentax. I'd rather have more Pentax lenses; even if they'll give them to Tokina and we will keep hearing the classic "it's a Sigma! No, a Tamron! No, a Tokina - anything but a Pentax!"

MikeyBugs95 · 10-06-2019, 07:08 AM

Originally posted by Kunzite

You mean Pentax and Tamron, right?
There isn't much in Tamron 's lineup which I'd like to see rebadged as a Pentax. I'd rather have more Pentax lenses; even if they'll give them to Tokina and we will keep hearing the classic "it's a Sigma! No, a Tamron! No, a Tokina - anything but a Pentax!"

Right, I was a bit distracted when typing this. And I mean if Pentax and Sigma would partner for a few lenses like what Pentax and Tamron did for the 15-30 and 24-70. But I wouldn't mind seeing Pentax rebadge the Tamron 35 1.4. Although I'm sure that Ricoh would much rather have a 35 1.4 as a Star lens designed and produced by Pentax.

Kunzite · 10-06-2019, 07:54 AM

Pentax and Sigma didn't happen, and I don't think it will in the future.
I guess you're right about the 35mm, it appears to be a D FA * lens (exact focal and name not officially confirmed; roadmap can change without notice). That would make it a Pentax.
design.
Probably we'll see more "Tokina Opera" s.

MikeyBugs95 · 10-06-2019, 07:59 AM

Originally posted by Kunzite

Pentax and Sigma didn't happen, and I don't think it will in the future.
I guess you're right about the 35mm, it appears to be a D FA * lens (exact focal and name not officially confirmed; roadmap can change without notice). That would make it a Pentax.
design.
Probably we'll see more "Tokina Opera" s.

That's fine too. Spreading the cost out to more potential customers is great. It means more potential income for Ricoh and it may get more people interested in seeing what Pentax has to offer.

Mistral75 · 10-06-2019, 08:06 AM - **1 Like**

Originally posted by MikeyBugs95

That's fine too. Spreading the cost out to more potential customers is great. It means more potential income for Ricoh and it may get more people interested in seeing what Pentax has to offer.

Provided that these people know that the Tokina lens they are admiring is based on a Pentax design, which, I think, is far from being the case in most circumstances.

Kunzite · 10-06-2019, 08:10 AM

Originally posted by Mistral75

Provided that these people know that the Tokina lens they are admiring is based on a Pentax design, which, I think, is far from being the case in most circumstances.

Don't worry, sites like DPR will surely give credit where credit is due... oh, wait...

MikeyBugs95 · 10-06-2019, 08:17 AM

Hence why I said may

xmeda · 10-06-2019, 10:28 AM - **1 Like**

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10-05-2019, 02:38 PM	#181
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	Is that an exclusive kit for shooting atmospheric atomic tests? Don't forget the sun screen!

10-05-2019, 04:30 PM	#182
totsmuyco Pentaxian Join Date: Aug 2013 Location: Iloilo City Photos: Gallery Posts: 2,276	Originally posted by xmeda 55-300 + 1.4TC.. hmm.. hm... heh... Have you really tried using it at that set up? How's the image quality?

10-05-2019, 06:24 PM	#183
xmeda Senior Member Join Date: Feb 2011 Location: Brno Posts: 295	Originally posted by Mistral75 Do you see anything in the viewfinder with this combination or is it completely black? wel... it is very dark, but with daylight the live-view is still somewhat usable. Thermal waves in air are worse problem..

10-05-2019, 06:30 PM	#184
xmeda Senior Member Join Date: Feb 2011 Location: Brno Posts: 295	Originally posted by MikeyBugs95 So that's a 1.7+1.7x+1.5x+1.4x? So assuming that the 50-500 is zoomed all the way out to 500, that's a 3034mm ... F... 38? For when you really want to see what that man's T-shirt is saying waayyyyyyyy over in the next state. 1.7 + 1.7 + 1.5 + 2 = 4335mm (6500mm Equiv of FF) F58 Now I have another two 2x TC.. so maybe it is time for new test.. but I need some really bright target... for 17340mm F232.. Something like 5s exposure on daylight with iso800 and tripod won't be enough.. maybe some packs with sand.

10-05-2019, 07:26 PM	#185
totsmuyco Pentaxian Join Date: Aug 2013 Location: Iloilo City Photos: Gallery Posts: 2,276	Originally posted by xmeda 1.7 + 1.7 + 1.5 + 2 = 4335mm (6500mm Equiv of FF) F58 Now I have another two 2x TC.. so maybe it is time for new test.. but I need some really bright target... for 17340mm F232.. Something like 5s exposure on daylight with iso800 and tripod won't be enough.. maybe some packs with sand. Good luck with your test. Remember you have 3 connected items. Hold your camera and lens properly. Also show us some samples.

10-06-2019, 04:49 AM - 1 Like	#186
Serkevan Site Supporter Join Date: May 2019 Photos: Albums Posts: 5,976	Jesus that thing is huge. Point it at the sun and you might even get away with a normal exposure time

10-06-2019, 06:14 AM	#187
MikeyBugs95 Pentaxian Join Date: Sep 2017 Location: New York Photos: Gallery \| Albums Posts: 1,206	I wonder if, since Sigma now won't be producing lenses in K-mount, Pentax and Sigma would partner for a few lenses like what they did with the 24-70 and 15-30. It's a pipe dream but a nice thought I guess.

10-06-2019, 07:04 AM	#188
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	Originally posted by MikeyBugs95 I wonder if, since Sigma now won't be producing lenses in K-mount, Pentax and Sigma would partner for a few lenses like what they did with the 24-70 and 15-30. It's a pipe dream but a nice thought I guess. You mean Pentax and Tamron, right? There isn't much in Tamron 's lineup which I'd like to see rebadged as a Pentax. I'd rather have more Pentax lenses; even if they'll give them to Tokina and we will keep hearing the classic "it's a Sigma! No, a Tamron! No, a Tokina - anything but a Pentax!"

10-06-2019, 07:08 AM	#189
MikeyBugs95 Pentaxian Join Date: Sep 2017 Location: New York Photos: Gallery \| Albums Posts: 1,206	Originally posted by Kunzite You mean Pentax and Tamron, right? There isn't much in Tamron 's lineup which I'd like to see rebadged as a Pentax. I'd rather have more Pentax lenses; even if they'll give them to Tokina and we will keep hearing the classic "it's a Sigma! No, a Tamron! No, a Tokina - anything but a Pentax!" Right, I was a bit distracted when typing this. And I mean if Pentax and Sigma would partner for a few lenses like what Pentax and Tamron did for the 15-30 and 24-70. But I wouldn't mind seeing Pentax rebadge the Tamron 35 1.4. Although I'm sure that Ricoh would much rather have a 35 1.4 as a Star lens designed and produced by Pentax.

10-06-2019, 07:54 AM	#190
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	Pentax and Sigma didn't happen, and I don't think it will in the future. I guess you're right about the 35mm, it appears to be a D FA * lens (exact focal and name not officially confirmed; roadmap can change without notice). That would make it a Pentax. design. Probably we'll see more "Tokina Opera" s.

10-06-2019, 07:59 AM	#191
MikeyBugs95 Pentaxian Join Date: Sep 2017 Location: New York Photos: Gallery \| Albums Posts: 1,206	Originally posted by Kunzite Pentax and Sigma didn't happen, and I don't think it will in the future. I guess you're right about the 35mm, it appears to be a D FA * lens (exact focal and name not officially confirmed; roadmap can change without notice). That would make it a Pentax. design. Probably we'll see more "Tokina Opera" s. That's fine too. Spreading the cost out to more potential customers is great. It means more potential income for Ricoh and it may get more people interested in seeing what Pentax has to offer.

10-06-2019, 08:06 AM - 1 Like	#192
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	Originally posted by MikeyBugs95 That's fine too. Spreading the cost out to more potential customers is great. It means more potential income for Ricoh and it may get more people interested in seeing what Pentax has to offer. Provided that these people know that the Tokina lens they are admiring is based on a Pentax design, which, I think, is far from being the case in most circumstances.

10-06-2019, 08:10 AM	#193
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	Originally posted by Mistral75 Provided that these people know that the Tokina lens they are admiring is based on a Pentax design, which, I think, is far from being the case in most circumstances. Don't worry, sites like DPR will surely give credit where credit is due... oh, wait...

10-06-2019, 08:17 AM	#194
MikeyBugs95 Pentaxian Join Date: Sep 2017 Location: New York Photos: Gallery \| Albums Posts: 1,206	Hence why I said may

10-06-2019, 10:28 AM - 1 Like	#195
xmeda Senior Member Join Date: Feb 2011 Location: Brno Posts: 295