Lenses for NEX: Pentax or Pen-F Zuiko

yusuf · 06-30-2013, 11:42 AM

Originally posted by kenafein

I just bought one. I was on the fence too, but Metabones is stalling. Who knows when they'll have one for K-mount(or FD, or AI, or MD) and it will be $400. I think it will work quite well for the excellent portraits I've seen from you in the past, but it might be an issue for landscapes. At $166, shipped, I can live with some limitations. I did read that first link of yours, previously, and it did give me pause;but I've been pretty happy with the samples I've seen from several sources. When Metabones' version comes out, I might sell the lens turbo and get one. I doubt I'll lose more than $20-40. What I'd really like to see is Metabones make one universal adapter. Say a 38mm adapter, with modular adapters to fit several mounts.

Thanks Brent!! I also ordered one, will post once I receive it .

yusuf · 06-30-2013, 07:04 PM

It seems like I won't be able to use DA lenses on Lens turbo, DA40 xs would have been a perfect combo. Hope I am wrong.

ihasa · 07-07-2013, 01:39 AM

Unfortunately you're not wrong, Yusuf.

yusuf · 07-07-2013, 01:54 AM

Originally posted by ihasa

Unfortunately you're not wrong, Yusuf.

Sad, so one possible way is to use something on aperture lever to keep it wide open before mounting ?

carrrlangas · 07-07-2013, 02:02 AM

Originally posted by yusuf

Sad, so one possible way is to use something on aperture lever to keep it wide open before mounting ?

You could solder or glue a lever on the Lens Turbo mount so that it keeps the aperture lever on the lens pushed while mounted. If you look at the mount on your this DSLR you´ll finde the exact position of this lever relative to the mount. The trick is to replicate such a thing on the Lens Turbo mount, but totally doable.

yusuf · 07-09-2013, 10:01 AM

Today received Lens Turbo, couldn't get enough time to play with it but here are some quick shots with LT & M50 / K55

First shot is with LT+M50 f1.7 and rest three are with LT+K55 f1.8

M50 @f1.7

K55 @f1.8

K55@f1.8

K55@f2.8

Looks great to me - what do you think?

kenafein · 07-10-2013, 02:08 PM

My FD version came today, I haven't had a chance to really test it yet. At first I thought it was defective. You have to be very careful how you mount it, or the aperture will not work. The cheap adapters usually have an open/lock mechanism to make it easier to mount.

yusuf · 07-10-2013, 10:24 PM

Originally posted by kenafein

My FD version came today, I haven't had a chance to really test it yet. At first I thought it was defective. You have to be very careful how you mount it, or the aperture will not work. The cheap adapters usually have an open/lock mechanism to make it easier to mount.

I read somewhere that you need to mount it wide open for Canon (I have no idea about Canon lenses though). I got the Pentax version and it does not have such issue, except a bit tight to mount the lens but now it's ok after I mounted-removed a few times. I just wish it had open-close mechanism.

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06-30-2013, 11:42 AM	#31
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497 Original Poster	Originally posted by kenafein I just bought one. I was on the fence too, but Metabones is stalling. Who knows when they'll have one for K-mount(or FD, or AI, or MD) and it will be $400. I think it will work quite well for the excellent portraits I've seen from you in the past, but it might be an issue for landscapes. At $166, shipped, I can live with some limitations. I did read that first link of yours, previously, and it did give me pause;but I've been pretty happy with the samples I've seen from several sources. When Metabones' version comes out, I might sell the lens turbo and get one. I doubt I'll lose more than $20-40. What I'd really like to see is Metabones make one universal adapter. Say a 38mm adapter, with modular adapters to fit several mounts. Thanks Brent!! I also ordered one, will post once I receive it .

06-30-2013, 07:04 PM	#32
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497 Original Poster	It seems like I won't be able to use DA lenses on Lens turbo, DA40 xs would have been a perfect combo. Hope I am wrong.

07-07-2013, 01:39 AM	#33
ihasa Veteran Member Join Date: Jul 2009 Location: West Midlands Photos: Gallery Posts: 2,066	Unfortunately you're not wrong, Yusuf.

07-07-2013, 01:54 AM	#34
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497 Original Poster	Originally posted by ihasa Unfortunately you're not wrong, Yusuf. Sad, so one possible way is to use something on aperture lever to keep it wide open before mounting ?

07-07-2013, 02:02 AM	#35
carrrlangas Veteran Member Join Date: Mar 2012 Location: Joensuu (Finland) Photos: Gallery Posts: 1,761	Originally posted by yusuf Sad, so one possible way is to use something on aperture lever to keep it wide open before mounting ? You could solder or glue a lever on the Lens Turbo mount so that it keeps the aperture lever on the lens pushed while mounted. If you look at the mount on your this DSLR you´ll finde the exact position of this lever relative to the mount. The trick is to replicate such a thing on the Lens Turbo mount, but totally doable.

07-09-2013, 10:01 AM	#36
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497 Original Poster	Today received Lens Turbo, couldn't get enough time to play with it but here are some quick shots with LT & M50 / K55 First shot is with LT+M50 f1.7 and rest three are with LT+K55 f1.8 M50 @f1.7 K55 @f1.8 K55@f1.8 K55@f2.8 Looks great to me - what do you think?

07-10-2013, 02:08 PM	#37
kenafein Veteran Member Join Date: May 2011 Location: Southern California Photos: Albums Posts: 4,082	My FD version came today, I haven't had a chance to really test it yet. At first I thought it was defective. You have to be very careful how you mount it, or the aperture will not work. The cheap adapters usually have an open/lock mechanism to make it easier to mount.

07-10-2013, 10:24 PM	#38
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497 Original Poster	Originally posted by kenafein My FD version came today, I haven't had a chance to really test it yet. At first I thought it was defective. You have to be very careful how you mount it, or the aperture will not work. The cheap adapters usually have an open/lock mechanism to make it easier to mount. I read somewhere that you need to mount it wide open for Canon (I have no idea about Canon lenses though). I got the Pentax version and it does not have such issue, except a bit tight to mount the lens but now it's ok after I mounted-removed a few times. I just wish it had open-close mechanism.