Review Roxsen Speedbooster MD and the Minolta 50mm f1.4 PG

eddieitman · Joined: 12 Apr 2011 Posts: 1246 Location: United Kingdom

Well i made an offer that i was hoping would not be accepted on the Minolta MD Roxsen Speedbooster, It was accepted and i paid £56 delivered to the UK.
So i went for a walk with my 10month old Baby strapped to my back, ( The only way she would let me leave to go and take pics).
So i went for a quick 1 Hour walk with baby on back, and the NEX7 sporting the Roxsen Booster, and the Rokkor 50mm PG.
First impresions are good, I dont notice to many issues with the quality, and even corners stopped down look pretty decent.
It is so nice to be able to walk with a 50 and have the same effect as full frame, with the added stop of light.
So here are some samples at different appertures.
My view for £56 its a great buy with pretty good quality was not able to see much CA
#1 F5.6

#2 F2.0

#3 F5.6

#4 F2.8

#5 F4

#6 F2

#7 F1.4

#8 F4

#9 f4

#10 F2.8

#11 F8

viniciuspedrozo · Joined: 17 Apr 2009 Posts: 19 Location: Brazil

Really work? Do you have adapter MD>MFT to Show to us?

glaebhoerl · Joined: 03 May 2014 Posts: 100 Location: Hungary

Looks good! I wonder how well it works with a 24mm or wider lens.

thebbm · Joined: 11 Dec 2013 Posts: 294 Location: France montpellier

TrueLoveOne · Expire: 2013-12-24

These samples look quite good actually, there's a good pop in some of your pics and lots of detail!

I have been thinking about buying a speed-booster for my Minolta lenses, but too many samples i looked at could not keep up with the original lens IQ, so it simply did not make sense for me to buy one.

I decided to save up and get the A7 instead some day..... meanwhile i shoot film for the FF experience with Minolta!

antico · Joined: 25 May 2015 Posts: 175 Location: Argentina

Nice shots! Seems very usable in terms of resolution at least for web size

aeropic · Joined: 24 Jul 2015 Posts: 34

eddieitman · Joined: 12 Apr 2011 Posts: 1246 Location: United Kingdom

Hi it was this make and adaptor http://www.ebay.co.uk/itm/Focal-Reducer-Speed-Booster-Adapter-Minolta-MD-mount-lens-to-Sony-NEX-E-A6000-5T-/151400549041?hash=item23402d0ab1:g:Y-4AAOSwxH1T~u2L

Attila · Expire: 2025-11-18

aeropic · Joined: 24 Jul 2015 Posts: 34

cooltouch · Joined: 15 Jan 2009 Posts: 9096 Location: Houston, Texas

Very impressive photos. I too would be most interested in seeing shots taken with a 24mm or wider lens. I've been thinking about buying a focal reducer like this for Canon FD for my NEX 7, but mostly so I can use wides with it -- especially my 17mm, which doesn't work at all well by itself with my NEX 7.

aeropic · Joined: 24 Jul 2015 Posts: 34

DigiChromeEd · Joined: 29 Dec 2009 Posts: 3462 Location: Northern Ireland

How does the quality of this compare to a Zhonghi Lens Turbo II?

cooltouch · Joined: 15 Jan 2009 Posts: 9096 Location: Houston, Texas

Probably the same. Probably the only difference is Roxsen is having theirs shipped with their name on it directly from Hong Kong. It's like Rokinon or Vivitar marketing lenses with thier names on them -- although they're made by Samyang.

Now, it might be you're better served getting a Roxsen, since thier eBay ad states: "Roxsen review and tests the quality of every adapter. Our products definitely meet the quality standard and to meeting customer expectation."

If Roxsen is really doing this, then this adds a layer of quality control that you wouldn't otherwise receive. Might be a good enough reason to buy from them. Besides, theirs is priced very competitively. Makes me wonder if it's equivalent to the Zhongyi Type 1 or Type II . . .

calvin83 · Joined: 12 Apr 2009 Posts: 7575 Location: Hong Kong

We have to remember Roxsen sells the Lens Turbo II too.

My friend told me centering of Lens Turbo I is not quiet consist. He tested some and there is only one are acceptable. The version II should be better?