[shoplink 26488 ebay]
[/shoplink]
The new Lens Turbo II focal reducer adapter is now available in four different versions at MXcamera:
[shoplink 26488 ebay]Canon EOS EF to E-mount (Click here)[/shoplink].
[shoplink 26489 ebay]Nikon F AI-S to E-mount (Click here)[/shoplink].
[shoplink 26490 ebay]Minolt MC MD to E-mount (Click here)[/shoplink].
[shoplink 26491 ebay]Canon EOS EF to E-mount (Click here)[/shoplink].
The optical performance should now be very close to the one of the double as expensive Metabones Speedbooster. A first unboxing article with pictures of the new Lens Turbo II has been posted at Kameravalg.dk.
0 Responses
“Close to prefect”, perfectly ironic! 😀
Also: “LEN TURBO II” and “LEN ADAPTER”.
Not prefect, but very close 😀
What would this make a f1.2 lens? f0.95?
no I think there is a limit to how much light it can let in. I forgot how it works.
mechanically these adaptors only go far f 1.0 regardless how bright the lens in front of these adaptors is.
The limit for the metabones speedbooster is f/0.90 and it makes a f/1.2 be f/0.9. Some NEX cameras can’t display lower than f/1 when using a canon speed booster with electronic contacts. My EF speedbooster sits idle these days. I should really use it more.
Admin, The last link is not Canon EOS but Pentax K mount to E mount adaptor.
now make a “close to” 2x lens turbo for the gh4
Why these people never check their spelling always baffles me. I believe that even in China, the word “perfect” is taught in elementary school. Are they deliberately trying to mess up?
And the Speed Booster is not “perfect”, it has quite pronounced distortion and the coating could use some work (or maybe counting in the original lens there’s just too many reflection surfaces) , and of course there’s the corner problem, so where does that put this.
Really, wow! Have a good one, even creoles know where China is. Come to Mardi Gras and loosen up because life is full of beautiful colors that never baffles one, be nice. C’est tout!
It doesn’t even have much to do with what level of education they received. Since they got it right the first time, how can they get it wrong a few sentences after? How could they be content with two different spellings of the same word that are so close to each other? Does it take even a minute to paste their text into Word and see what red lines come up?It looks to me like nothing but a typo and sheer carelessness to their PR. It could and should be in every way avoided. I don’t think this counts as being harsh on them. It’s among the basics of the basics.
I agree with S.Yu, they spend months of designing the adapter and spend 5mins doing the spelling correction, there is also another spelling error:
LEN instead of lens on the very top line
such a shame- if they cannot get this right , how they can make god quality control for the product?
I hope they have god quality control as well.
Agreed. It’s not about education. It’s simply unprofessional laziness and casualness.
I wonder what is more significant – the small Chinese company that doesn’t seem to have staff proficient in English, or someone completely missing the fact that this is a totally new optical design…
It’s not about proficiency. It’s about attitude. Refer to the replies below, they present my point better than I could. I myself have very limited vocabulary but I try my best to avoid these basic mistakes in every one of my posts.
It’s all marketing BS at the end of the day… “Taste the full frame”? Last time I checked you still have an apsc sensor in there. Presumably it means you suffer from worse corner performance, given that you’re using the full image circle. Likewise “reduce the internal reflection” implies it isn’t exactly perfect either…
It is. But we’re assuming that they still more or less mean something here.
It is a taste of full frame actually. Since it helps gain a stop, it somewhat closes the high ISO gap between APS-C and FF, though it can’t help gain any dynamic range. Besides that you finally get FF bokeh, which is a focus of marketing BS in even smaller format systems, like that…was it 32/1.2, for Nikon’s 1″ system, boy did Nikon brag about its “shallow” DoF…
Of course that allows them to put a higher price tag on it, which, when compared to FF lenses combined with reducers like this one, seem like total ripoffs.
You do lose corner performance but my guess is that this is because the reducer elements can’t be adjusted to an optimal distance from the rear element of the lens and then move with the rest of the elements, they’re stuck in one place, so the lens elements act like a floating element group while the reducer elements remain stationary, and the reducer elements could not be designed to cope with the different floating patterns of different lenses, so some aberrations could not be avoided, and these aberrations are more prominent at edges and corners. That said, I do believe that for every lens used on a reducer, there’s an optimal focusing distance where corner performance is very close to the original, when it’s used on FF without a reducer, provided the reducer is good enough.
Meh, I just bought one. The quality of the product is more important than the quality of the ad. Unfortunately in the West, the reverse is usually the case in reality. Make a crap product, but a slick ad.
I guess you can’t put this on a full-frame e-mount like the A7R because the negative focal multiplier would create some vignetting with any lens mounted on it, right?
Exactly. In will turn FF lens image circle to an APS one.
However, they should consider making a larger one to reduce MF lenses to FF.
Right, but you could use it in 1.5x crop mode to get the same field of view with 15 MP that you would get with 36 MP if you’d use a simple adapter. 😉
“Close to Perfect”? wondering what is the optical performance? Why don’t they show the MTF curve?
“close to prefect” is a nice way of saying “still imprefect”.
Prefect?
You mean Perfect, right?
Mr “Spell Check is Free….”
LOL, I just saw it in the fine print below. Nevermind 😉
Is there anything perfect?
Lost of perfection – no EF lens Control Lol
What does it do? I can’t see any explanation. Is it for APS-C/FF? Does it make the lens “faster”, or change something else, too (beside probably ruin IQ)?
It is for using full frame capable lenses on a APS-C sensor
It does the opposite of a teleconverter.
Instead of magnifying the image and losing light it condenses the image circle to fit the APS-C frame and also makes the image brighter.
Instead of the FF lens crop factor the lens will exhibit its FF angle of view
Thank you. 🙂
Does it support autofocus for Nikon AFS lens?
No, these are completely manual adapters.
Hi
Will do the testing this weekend, and the plan is to use the Canon 24-105mm f4 lens, and maybe a Canon 50mm f1.4 also. Dont think it will match the Metabones, but the price is also way lower.
At the moment I am waiting on a Canon EF to NEX adapter with no glas, to compare with, hope it will arrive tomorrow.
Regards Henrik – Kameravalg.dk
I’ve tasted the full-frame. It’s delicious.
So just to be clear, this will not work with EF-S lenses and there’s no AF?
Thaaaat’s how you fix all the issues. Put a rectangle on the back. XD
Some of the first pictures taking with it: (In danish)
http://kameravalg.dk/lens-turbo-ii-review-foerste-skud/
Hope to take some more tomorrow – I am really an amateur when it comes to manuel settings, and thats shows.
/Henrik
Quality seems pretty good! No more blue area in the center (compared to the mk I). What’s your first impression? Worth the money?
The blue dot problem seems gone, and the corners are sharper than the mk I – So if you dont mind the manuel use, I think its a nice adapter.
https://www.youtube.com/watch?v=C-_IyKMfd8E
Got some more pictures thaw I will upload soon ….
Seems like a solid piece! thanks a lot!