How to push the Pentax Full-Frame Idea and get that FF out faster...

Kunzite · 01-16-2013, 03:49 AM

You shouldn't compare an obviously fake 1st April joke with an interview with a Pentax official.

I see you are still ignoring the fact that Speedbooster is/will be made for lens mounts with larger registration distances than the K-mount.

Clavius · 01-16-2013, 04:01 AM

Originally posted by Kunzite

You shouldn't compare an obviously fake 1st April joke with an interview with a Pentax official.

I can't answer a joke with a joke?

LOL! I never thought the people at PF would play such a crual joke either, but I was proven wrong then too. Fool me once...

Originally posted by Kunzite

I see you are still ignoring the fact that Speedbooster is/will be made for lens mounts with larger registration distances than the K-mount.

Not ignoring, I think you just don't understand how it works. Or I'm wrong myself, then just correct me:

Lenses with a large registry distance can be coupled with a speedbooster to ten be used on mounts with a shorter registry distance. Not on mounts with the same registry distance, because the speedbooster shortens the lenses registry distance.

For example, speedbooster can adapt FF PK lenses to work on APSC E-mount. They can't adapt FF PK lenses to APSC PK camera, because the registry distance will be to short.

So, in that respect, the only use for K-mount cameras with a speedbooster, would be to use lenses with an even longer registry distance. The number of candidates that fit that description seem to be negligable.

Not such good news for Pentax. But hopefully I got it wrong. Then please correct me.

Kunzite · 01-16-2013, 04:16 AM

I didn't liked that 1st April joke, by the way; it was indeed cruel.

I understand how it works, it indeed adapts SLR lenses on MILC cameras. Pentax K-mount lenses, APS-C and FF, could easily be adapted to MILC cameras by a Speedbooster. Yes, you cannot do the other way around but that's true for every SLR mount out there (and with medium format lenses, it doesn't make much sense IMO). Pentax K is not doomed, unless Nikon F, Canon EOS are doomed as well.
In the light of the recent interviews, it appears Pentax will have the proper solution, a full frame camera (depending on the marketing people to find a solution which sells). This will be superior to the Speedbooster kludge, by the way (and more costly, as well).

Clavius · 01-16-2013, 04:38 AM

Originally posted by Kunzite

I understand how it works, it indeed adapts SLR lenses on MILC cameras. Pentax K-mount lenses, APS-C and FF, could easily be adapted to MILC cameras by a Speedbooster. Yes, you cannot do the other way around but that's true for every SLR mount out there (and with medium format lenses, it doesn't make much sense IMO). Pentax K is not doomed, unless Nikon F, Canon EOS are doomed as well.
In the light of the recent interviews, it appears Pentax will have the proper solution, a full frame camera (depending on the marketing people to find a solution which sells). This will be superior to the Speedbooster kludge, by the way (and more costly, as well).

Wouldn't it make as much sense adapting Medium format lenses to smaller format camera, as it makes sense adapting FF to smaller format camera?

Kunzite · 01-16-2013, 06:37 AM

IMO no; because they are not very fast, and are expensive; I think you'll be better off using native FF lenses.

Anvh · 01-16-2013, 07:14 AM

But how much room do you need, the mirror of the APS-C is a bit smaller so the mount could come inward a bit.
Beside we are talking about the speedbooster, whoe say you can't make a condenser that keeps the register?

Kunzite · 01-17-2013, 12:40 AM

We already discussed about a smaller registration distance APS-C DSLR ad nauseam and no, it can't. Nothing changed since then, sorry

The current version is around 600? Making it more complex will increase its price, and we're already not very far from FF domain (if adding the price of a high end APS-C camera).

Anvh · 01-17-2013, 09:34 AM

Originally posted by Kunzite

We already discussed about a smaller registration distance APS-C DSLR ad nauseam and no, it can't.

Canon have lenses that can only be used with APS-C because the lens intrude into the mount, why can't pentax do that?
The register of the mount stays the same.

GordonD · 01-19-2013, 05:13 PM

I would upgrade to a FF. Ideal spec would be K-5 body with 24MP low noise sensor, upgraded processor to improve speed and HD movies, upgraded focus sensors, 100% viewfinder and aperture ring in the lens mount so I can fully use older lenses.
A FF sensor would get the best out of the A and FA lenses I have, and with Ricoh investment Pentax could produce and new range of HD FF lenses.
Hurry up as I am getting very tempted to swap to Sony SLT-A99 with Zeiss glass, but the large size makes me wait for Pentax.

Medium FormatPro · 01-20-2013, 06:01 AM - **1 Like**

Originally posted by GordonD

A FF sensor would get the best out of the A and FA lenses I have, and with Ricoh investment Pentax could produce and new range of HD FF lenses

Also noting; in addition to the Pentax labeled variations that you mentioned... In total there are in excess of some fifty existing marketed fullframe lens' available in PK

Spare Tire · 01-21-2013, 10:33 PM

Originally posted by Clavius

For example, speedbooster can adapt FF PK lenses to work on APSC E-mount. They can't adapt FF PK lenses to APSC PK camera, because the registry distance will be to short.

FF K-mount is the same mount as APS-C K-mount. So the registry distance difference would be zero. So... i'm under the impression that you think these two K-mounts have different registry distance... Which would make you wrong, in a different subject altogether.
I don't think anybody was implying metabones was going to make a speedbooster that will adapt FF K-mount lenses to APS-C K-mount lenses.

As for me, i've jumped ship already 6-months ago... to µ4/3. And this is welcomed news for me! f0.75 here i come!

Clavius · 01-22-2013, 12:45 AM

Originally posted by Spare Tire

FF K-mount is the same mount as APS-C K-mount. So the registry distance difference would be zero. So... i'm under the impression that you think these two K-mounts have different registry distance... Which would make you wrong, in a different subject altogether.
I don't think anybody was implying metabones was going to make a speedbooster that will adapt FF K-mount lenses to APS-C K-mount lenses.

As for me, i've jumped ship already 6-months ago... to µ4/3. And this is welcomed news for me! f0.75 here i come!

Nope, you should read more carefully. The registry distance will be to short for use on K-mount when the speedbooster is applied. Because the speedbooster will shorten the registry distance.

Spare Tire · 01-22-2013, 07:36 AM

I know! That's what i'm saying.

Even so, theoretically speaking, it doesn't HAVE to shorten the registry distance. There are adaptors for FD to EF-mount and FD is a shorter mount than EF! If you ad glass in your adaptor, anything goes. You could have an adaptor that reduces the image circle while adapting a K-mount to a K-mount.
But nobody's gonna make that.

Anyways just give me my fullframe already.

Anvh · 01-22-2013, 09:23 AM

Originally posted by Spare Tire

you could have an adaptor that reduces the image circle while adapting a K-mount to a K-mount.

Not sure but if you've design that keeps the register it should work on all mounts right?

Anvh · 01-30-2013, 08:48 AM

Can we also try to push another FF camera out?

645... 6x7? =D

01-22-2013, 07:36 AM	#1123
Spare Tire Senior Member Join Date: Jul 2010 Location: Montréal Posts: 118	I know! That's what i'm saying. Even so, theoretically speaking, it doesn't HAVE to shorten the registry distance. There are adaptors for FD to EF-mount and FD is a shorter mount than EF! If you ad glass in your adaptor, anything goes. You could have an adaptor that reduces the image circle while adapting a K-mount to a K-mount. But nobody's gonna make that. Anyways just give me my fullframe already. Last edited by Spare Tire; 01-22-2013 at 08:08 AM.

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01-16-2013, 03:49 AM	#1111
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	You shouldn't compare an obviously fake 1st April joke with an interview with a Pentax official. I see you are still ignoring the fact that Speedbooster is/will be made for lens mounts with larger registration distances than the K-mount.

01-16-2013, 04:01 AM	#1112
Clavius Veteran Member Join Date: Feb 2011 Location: De Klundert Photos: Gallery Posts: 4,150	Originally posted by Kunzite You shouldn't compare an obviously fake 1st April joke with an interview with a Pentax official. I can't answer a joke with a joke? LOL! I never thought the people at PF would play such a crual joke either, but I was proven wrong then too. Fool me once... Originally posted by Kunzite I see you are still ignoring the fact that Speedbooster is/will be made for lens mounts with larger registration distances than the K-mount. Not ignoring, I think you just don't understand how it works. Or I'm wrong myself, then just correct me: Lenses with a large registry distance can be coupled with a speedbooster to ten be used on mounts with a shorter registry distance. Not on mounts with the same registry distance, because the speedbooster shortens the lenses registry distance. For example, speedbooster can adapt FF PK lenses to work on APSC E-mount. They can't adapt FF PK lenses to APSC PK camera, because the registry distance will be to short. So, in that respect, the only use for K-mount cameras with a speedbooster, would be to use lenses with an even longer registry distance. The number of candidates that fit that description seem to be negligable. Not such good news for Pentax. But hopefully I got it wrong. Then please correct me.

01-16-2013, 04:16 AM	#1113
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	I didn't liked that 1st April joke, by the way; it was indeed cruel. I understand how it works, it indeed adapts SLR lenses on MILC cameras. Pentax K-mount lenses, APS-C and FF, could easily be adapted to MILC cameras by a Speedbooster. Yes, you cannot do the other way around but that's true for every SLR mount out there (and with medium format lenses, it doesn't make much sense IMO). Pentax K is not doomed, unless Nikon F, Canon EOS are doomed as well. In the light of the recent interviews, it appears Pentax will have the proper solution, a full frame camera (depending on the marketing people to find a solution which sells). This will be superior to the Speedbooster kludge, by the way (and more costly, as well).

01-16-2013, 04:38 AM	#1114
Clavius Veteran Member Join Date: Feb 2011 Location: De Klundert Photos: Gallery Posts: 4,150	Originally posted by Kunzite I understand how it works, it indeed adapts SLR lenses on MILC cameras. Pentax K-mount lenses, APS-C and FF, could easily be adapted to MILC cameras by a Speedbooster. Yes, you cannot do the other way around but that's true for every SLR mount out there (and with medium format lenses, it doesn't make much sense IMO). Pentax K is not doomed, unless Nikon F, Canon EOS are doomed as well. In the light of the recent interviews, it appears Pentax will have the proper solution, a full frame camera (depending on the marketing people to find a solution which sells). This will be superior to the Speedbooster kludge, by the way (and more costly, as well). Wouldn't it make as much sense adapting Medium format lenses to smaller format camera, as it makes sense adapting FF to smaller format camera?

01-16-2013, 06:37 AM	#1115
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	IMO no; because they are not very fast, and are expensive; I think you'll be better off using native FF lenses.

01-16-2013, 07:14 AM	#1116
Anvh Veteran Member Join Date: Sep 2011 Posts: 4,616	But how much room do you need, the mirror of the APS-C is a bit smaller so the mount could come inward a bit. Beside we are talking about the speedbooster, whoe say you can't make a condenser that keeps the register?

01-17-2013, 12:40 AM	#1117
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	We already discussed about a smaller registration distance APS-C DSLR ad nauseam and no, it can't. Nothing changed since then, sorry The current version is around 600? Making it more complex will increase its price, and we're already not very far from FF domain (if adding the price of a high end APS-C camera).

01-17-2013, 09:34 AM	#1118
Anvh Veteran Member Join Date: Sep 2011 Posts: 4,616	Originally posted by Kunzite We already discussed about a smaller registration distance APS-C DSLR ad nauseam and no, it can't. Canon have lenses that can only be used with APS-C because the lens intrude into the mount, why can't pentax do that? The register of the mount stays the same.

01-19-2013, 05:13 PM	#1119
GordonD New Member Join Date: Nov 2009 Posts: 4	I would upgrade to a FF. Ideal spec would be K-5 body with 24MP low noise sensor, upgraded processor to improve speed and HD movies, upgraded focus sensors, 100% viewfinder and aperture ring in the lens mount so I can fully use older lenses. A FF sensor would get the best out of the A and FA lenses I have, and with Ricoh investment Pentax could produce and new range of HD FF lenses. Hurry up as I am getting very tempted to swap to Sony SLT-A99 with Zeiss glass, but the large size makes me wait for Pentax.

01-20-2013, 06:01 AM - 1 Like	#1120
Medium FormatPro Banned Join Date: Mar 2012 Location: Charleston & Pittsburgh Photos: Albums Posts: 1,668	Originally posted by GordonD A FF sensor would get the best out of the A and FA lenses I have, and with Ricoh investment Pentax could produce and new range of HD FF lenses Also noting; in addition to the Pentax labeled variations that you mentioned... In total there are in excess of some fifty existing marketed fullframe lens' available in PK

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01-21-2013, 10:33 PM	#1121
Spare Tire Senior Member Join Date: Jul 2010 Location: Montréal Posts: 118	Originally posted by Clavius For example, speedbooster can adapt FF PK lenses to work on APSC E-mount. They can't adapt FF PK lenses to APSC PK camera, because the registry distance will be to short. FF K-mount is the same mount as APS-C K-mount. So the registry distance difference would be zero. So... i'm under the impression that you think these two K-mounts have different registry distance... Which would make you wrong, in a different subject altogether. I don't think anybody was implying metabones was going to make a speedbooster that will adapt FF K-mount lenses to APS-C K-mount lenses. As for me, i've jumped ship already 6-months ago... to µ4/3. And this is welcomed news for me! f0.75 here i come!

01-22-2013, 12:45 AM	#1122
Clavius Veteran Member Join Date: Feb 2011 Location: De Klundert Photos: Gallery Posts: 4,150	Originally posted by Spare Tire FF K-mount is the same mount as APS-C K-mount. So the registry distance difference would be zero. So... i'm under the impression that you think these two K-mounts have different registry distance... Which would make you wrong, in a different subject altogether. I don't think anybody was implying metabones was going to make a speedbooster that will adapt FF K-mount lenses to APS-C K-mount lenses. As for me, i've jumped ship already 6-months ago... to µ4/3. And this is welcomed news for me! f0.75 here i come! Nope, you should read more carefully. The registry distance will be to short for use on K-mount when the speedbooster is applied. Because the speedbooster will shorten the registry distance.

01-22-2013, 09:23 AM	#1124
Anvh Veteran Member Join Date: Sep 2011 Posts: 4,616	Originally posted by Spare Tire you could have an adaptor that reduces the image circle while adapting a K-mount to a K-mount. Not sure but if you've design that keeps the register it should work on all mounts right?

01-30-2013, 08:48 AM	#1125
Anvh Veteran Member Join Date: Sep 2011 Posts: 4,616	Can we also try to push another FF camera out? 645... 6x7? =D