Metabones 0.5x Speed Booster for Pentax Q cameras

Cannikin · 09-05-2017, 03:03 PM - **3 Likes**

Didn't see any threads about this in the news forum or the Q forum, though this was announced a week ago. Initially available for Nikon lenses, announced plans for a K mount lens version.

Metabones Devil's Speed Booster Q666 0.50x Press Release

Still no K mount lens -> large sensor MILC though.

johnmflores · 09-05-2017, 03:31 PM - **4 Likes**

That is ridiculous. I want it.

6BQ5 · 09-05-2017, 03:32 PM

Can someone clarify what this adapter does? Does it reduce the crop factor of the Q by half? Why would my Q suddenly become a low light monster as the press release states?

Cannikin · 09-05-2017, 03:40 PM

Originally posted by 6BQ5

Can someone clarify what this adapter does? Does it reduce the crop factor of the Q by half? Why would my Q suddenly become a low light monster as the press release states?

You can think of it as a reverse teleconverter. It multiplies the focal length and f-number by 0.5x, e.g. a 100mm f/2.8 becomes an effective 50mm f/1.4.

mee · 09-05-2017, 03:45 PM - **1 Like**

A little late in the game, but even if I used Q I wouldn't buy based on the poor choice in naming and branding.

surfar · 09-05-2017, 03:56 PM

Not sure Y they would bother,the Q system seems "non active" from Ricohs direction even though they said(quite a while ago) that they still "support the Q".

How many will bother buying this?...It costs as much as a used body and a few lenses???

On the + side Metabones does high class stuff.

**Fontan** · 09-05-2017, 04:03 PM - **1 Like**

Wow. This is .... as bizarre as it gets. Getting it for sure.

reh321 · 09-05-2017, 05:40 PM

Originally posted by Cannikin

You can think of it as a reverse teleconverter. It multiplies the focal length and f-number by 0.5x, e.g. a 100mm f/2.8 becomes an effective 50mm f/1.4.

When you say "becomes an effective 50mm" do you mean that at this point it still provides slightly more reach than the 06 does??
Thinking of what is available in K-mount and what is available in Q-mount, I'm having a hard time seeing where this would be useful. Perhaps turning a 24mm or 28mm f/2.8 lens into a 12mm or 14mm f/1.4 lens or turning a 50mm f/1.4 lens into a 25mm f/0.7 lens. $400+ is a lot of money unless a solid use is there.

Cannikin · 09-05-2017, 05:52 PM

Originally posted by reh321

When you say "becomes an effective 50mm" do you mean that at this point it still provides slightly more reach than the 06 does??

It means it will have the same AOV as if you put an actual (not "equivalent") 50mm lens on your camera. Crop factor still applies, so yes it would have a slightly narrower AOV than the 06 15-45mm (Q lenses are labeled with their real, not "equivalent", focal lengths).

surfar · 09-05-2017, 05:58 PM

I'm sceptical, ive been using FR/SB for a couple of years now on other systems....

Most are 0.71 reduction, so on Apsc it makes a 1.1x crop....and on M43 1.4x crop....and you gain one stop

Metabones has these reducers and the XL model that brings the crop to equal to FF..1.0...its 0.63 and you gain a stop and a third of light.

I'd rather buy the 08 for the same $$$$$....

i think itd be useful for dead of night shooting with no moon, in reality PITCH BLACK....otherwise the 01 does a great job.

**twilhelm** · 09-05-2017, 06:50 PM

Well damn... I'm going to have to get one, just because...

johnmflores · 09-05-2017, 07:03 PM

Oh wait, it's a Pentax Q to Nikon G mount focal reducer???

Cannikin · 09-05-2017, 07:16 PM

Originally posted by johnmflores

Oh wait, it's a Pentax Q to Nikon G mount focal reducer???

Currently available: Nikon lens -> Q camera

Later on: K mount lens -> Q camera

Q lens -> DSLR focal reducer is not physically possible

6BQ5 · 09-05-2017, 09:58 PM

So, mounting a 50mm f/1.4 lens on this adapter will give me an optic system that works like a 25mm f/0.7. Apply the Q7 crop factor of 4.7x I will have an image that is equivalent to a 117.5mm lens on FF showing a depth of field as if that 117.5mm lens was set to f/3.29?

The 06 lens could give the same equivalent field of view but even wide open at f/2.8 I would have an equivalent depth of field of f/13.16.

Hmm... I suppose if you could live with a shallow depth of field at equivalent long focal lengths or need that light gathering power then this adapter could be for you.

surfar · 09-05-2017, 10:23 PM

Originally posted by Cannikin

Currently available: Nikon lens -> Q camera

Very smart marketing from Metabones...NOT

Bringing out an adapter that nothing new has been released for the system in the last couple of years???

And not bringinging it out in the K mount of the brand its made for????

OH, i get it....theyve bought up the Q inventory and wanta convert the Nikon user base...Brilliant!

09-05-2017, 03:03 PM - 3 Likes	#1
Cannikin Veteran Member Join Date: Mar 2010 Location: SW Washington Posts: 833	Metabones 0.5x Speed Booster for Pentax Q cameras Didn't see any threads about this in the news forum or the Q forum, though this was announced a week ago. Initially available for Nikon lenses, announced plans for a K mount lens version. Metabones Devil's Speed Booster Q666 0.50x Press Release Still no K mount lens -> large sensor MILC though.

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09-05-2017, 03:31 PM - 4 Likes	#2
johnmflores Veteran Member Join Date: Apr 2009 Location: Somerville, NJ Photos: Gallery \| Albums Posts: 5,361	That is ridiculous. I want it.

09-05-2017, 03:32 PM	#3
6BQ5 Veteran Member Join Date: Jun 2013 Location: Nevada, USA Photos: Albums Posts: 3,348	Can someone clarify what this adapter does? Does it reduce the crop factor of the Q by half? Why would my Q suddenly become a low light monster as the press release states?

09-05-2017, 03:40 PM	#4
Cannikin Veteran Member Join Date: Mar 2010 Location: SW Washington Posts: 833 Original Poster	Originally posted by 6BQ5 Can someone clarify what this adapter does? Does it reduce the crop factor of the Q by half? Why would my Q suddenly become a low light monster as the press release states? You can think of it as a reverse teleconverter. It multiplies the focal length and f-number by 0.5x, e.g. a 100mm f/2.8 becomes an effective 50mm f/1.4.

09-05-2017, 03:45 PM - 1 Like	#5
mee Veteran Member Join Date: May 2010 Posts: 7,403	A little late in the game, but even if I used Q I wouldn't buy based on the poor choice in naming and branding.

09-05-2017, 03:56 PM	#6
surfar Pentaxian Join Date: Jan 2015 Location: mid nth coast,nsw Photos: Gallery Posts: 6,137	Not sure Y they would bother,the Q system seems "non active" from Ricohs direction even though they said(quite a while ago) that they still "support the Q". How many will bother buying this?...It costs as much as a used body and a few lenses??? On the + side Metabones does high class stuff.

09-05-2017, 04:03 PM - 1 Like	#7
Fontan Site Supporter Join Date: Jan 2011 Location: 5th floor Posts: 1,610	Wow. This is .... as bizarre as it gets. Getting it for sure.

09-05-2017, 05:40 PM	#8
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,175	Originally posted by Cannikin You can think of it as a reverse teleconverter. It multiplies the focal length and f-number by 0.5x, e.g. a 100mm f/2.8 becomes an effective 50mm f/1.4. When you say "becomes an effective 50mm" do you mean that at this point it still provides slightly more reach than the 06 does?? Thinking of what is available in K-mount and what is available in Q-mount, I'm having a hard time seeing where this would be useful. Perhaps turning a 24mm or 28mm f/2.8 lens into a 12mm or 14mm f/1.4 lens or turning a 50mm f/1.4 lens into a 25mm f/0.7 lens. $400+ is a lot of money unless a solid use is there.

09-05-2017, 05:52 PM	#9
Cannikin Veteran Member Join Date: Mar 2010 Location: SW Washington Posts: 833 Original Poster	Originally posted by reh321 When you say "becomes an effective 50mm" do you mean that at this point it still provides slightly more reach than the 06 does?? It means it will have the same AOV as if you put an actual (not "equivalent") 50mm lens on your camera. Crop factor still applies, so yes it would have a slightly narrower AOV than the 06 15-45mm (Q lenses are labeled with their real, not "equivalent", focal lengths).

09-05-2017, 05:58 PM	#10
surfar Pentaxian Join Date: Jan 2015 Location: mid nth coast,nsw Photos: Gallery Posts: 6,137	I'm sceptical, ive been using FR/SB for a couple of years now on other systems.... Most are 0.71 reduction, so on Apsc it makes a 1.1x crop....and on M43 1.4x crop....and you gain one stop Metabones has these reducers and the XL model that brings the crop to equal to FF..1.0...its 0.63 and you gain a stop and a third of light. I'd rather buy the 08 for the same $$$$$.... i think itd be useful for dead of night shooting with no moon, in reality PITCH BLACK....otherwise the 01 does a great job.

09-05-2017, 06:50 PM	#11
twilhelm Loyal Site Supporter Join Date: Feb 2009 Location: Florida Photos: Gallery \| Albums Posts: 2,369	Well damn... I'm going to have to get one, just because...

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09-05-2017, 07:03 PM	#12
johnmflores Veteran Member Join Date: Apr 2009 Location: Somerville, NJ Photos: Gallery \| Albums Posts: 5,361	Oh wait, it's a Pentax Q to Nikon G mount focal reducer???

09-05-2017, 07:16 PM	#13
Cannikin Veteran Member Join Date: Mar 2010 Location: SW Washington Posts: 833 Original Poster	Originally posted by johnmflores Oh wait, it's a Pentax Q to Nikon G mount focal reducer??? Currently available: Nikon lens -> Q camera Later on: K mount lens -> Q camera Q lens -> DSLR focal reducer is not physically possible

09-05-2017, 09:58 PM	#14
6BQ5 Veteran Member Join Date: Jun 2013 Location: Nevada, USA Photos: Albums Posts: 3,348	So, mounting a 50mm f/1.4 lens on this adapter will give me an optic system that works like a 25mm f/0.7. Apply the Q7 crop factor of 4.7x I will have an image that is equivalent to a 117.5mm lens on FF showing a depth of field as if that 117.5mm lens was set to f/3.29? The 06 lens could give the same equivalent field of view but even wide open at f/2.8 I would have an equivalent depth of field of f/13.16. Hmm... I suppose if you could live with a shallow depth of field at equivalent long focal lengths or need that light gathering power then this adapter could be for you.

09-05-2017, 10:23 PM	#15
surfar Pentaxian Join Date: Jan 2015 Location: mid nth coast,nsw Photos: Gallery Posts: 6,137	Originally posted by Cannikin Currently available: Nikon lens -> Q camera Very smart marketing from Metabones...NOT Bringing out an adapter that nothing new has been released for the system in the last couple of years??? And not bringinging it out in the K mount of the brand its made for???? OH, i get it....theyve bought up the Q inventory and wanta convert the Nikon user base...Brilliant!