Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3

Started Apr 8, 2013 | Discussions
Louno
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Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
Apr 8, 2013

Hi guys,

I have a nex-3n, this is my first mirrorless or slr type camera ( always been using point & shoot before)  and I wanted to have a good sharp, fast 50mm with nice creamy smooth bokeh, for shooting food mainly, but also other stuff.

I have the possibility to get these lenses together for 70$, or get only the 50mm for 40$, this is local so no shipping/taxes. I haven't checked their condition yet but they are supposed to be in good shape.

I am a total noob and although I did get a LOT of feedback on my previous thread where I asked for recommendation, it is all a bit (extremely) overwhelming... many of the lenses that were recommended were said to be available at 25-35$ but when looking around on ebay a lot of them were more like 50-75$ plus 10 to 30$ of shipping, so, I started looking locally, and obviously the selection is more limited...

I see a lot of info on the pentax-M 50mm but not a lot on the A version, are they any good?

The Vivitar 28-200mm f3.5-5.3 Macro Focusing Zoom I wasn't planning to buy originally as I was more interested in a very fast 50mm prime, but at this price I think it might be worth it just for fun, i know it will be completely unbalanced on the tiny nex3n, but it's in the same mount type so that saves me the purchase of another adaptor...

The disadvantage of these is that they use the pentax-K mount so, it adds a lot of thickness to the lenses... not sure this would be the best solution, but again, it seems to be worth it for the price... or am I wrong? should I be looking at something else or spend more?

Sony Alpha NEX-3N
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Louno
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to Louno, Apr 9, 2013

sorry to bump this up, but, i'm about to go out to check out the lens... i'd just like to hear what some of you think...?

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kuuan
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to Louno, Apr 9, 2013

Louno wrote:

sorry to bump this up, but, i'm about to go out to check out the lens... i'd just like to hear what some of you think...?

the Pentax A 1.7/50 is a great lens, don't know the Vivitar

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photos mostly taken with manual lenses on Sony NEX5N, Pentax K-x and *istDs: http://flickr.com/photos/kuuan/

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duncanidaho25
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to kuuan, Apr 9, 2013

I'd hold out for a SMC Takumar 50mm 1.4 though you'll spend closer to $100.

I don't know about the vivitar 28-200 but I wouldn't expect much out of it.

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Louno
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to kuuan, Apr 9, 2013

kuuan wrote:

Louno wrote:

sorry to bump this up, but, i'm about to go out to check out the lens... i'd just like to hear what some of you think...?

the Pentax A 1.7/50 is a great lens, don't know the Vivitar

-
photos mostly taken with manual lenses on Sony NEX5N, Pentax K-x and *istDs: http://flickr.com/photos/kuuan/

Thanks Kuuan, I had already seen your awesome lenses comparisons from my previous thread and actually found the pentax-A 50mm 1.7 to be amongst the sharpest. It is mostly based on your sample photos that I considered buying this lens, however this was only your lens and I wanted to see some more sample and hear more opinions before committing...
Anyhow, I went to see the lens, the glass was super clean, however I couldn't open/close the aperture... I was disappointed at first but then noticed there is a little kind of metal "stick" on the back of the lens, on the mount part, which when moved left or right controls the aperture opening, this allowed me to control the aperture but required a bit of force to move as the stick was a bit bent and was rubbing against the mount metal flange part, I assumed this friction was preventing the aperture control ring from working, it clicked but didn't move, I had to move this stick manually from the back of the lens to make it work... So I offered to get the lens for 25$ as I thought I could straighten back this little stick... I arrived home and used some pliers to straighten it up, its not 100% straight but it doesnt rub anymore and now i can freely control the aperture on the lens directly... I just hope that this little bent will not prevent me to mount the lens on the adapter... which I haven't ordered yet.

I also got the vivitar, but, i'm not sure why, its ridiculously large and heavy, i think it might break/damage the camera, especially if I only hold the camera body without supporting the lens... the aperture is only 3.5 though so it might not be fast enough especially since there is no image stabilization... I'm affraid this is going to be a waste of money but I got it because it was in very good condition and idk, for 35$ it seems like an awesome deal and people have been recommending long focal length macro lenses for food photography, so i'll give it a try...

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kuuan
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to Louno, Apr 9, 2013

you did well.

for opinions on takumar and Pentax lenses the users reviews at Pentaxforums are a good reference, see: http://www.pentaxf.rums.com/lensreviews/SMC-Pentax-A-50mm-F1.7-Lens.html ( substitute the . in forum with an o, can't link directly since it's blocked here )

I think they even have a review of your Vivitar zoom there

I am sure you will get the aperture issue solved, you already did it seems. Even without the problem you mention Pentax A lenses aperture rings are a bit clunky as compared to Pentax's earlier makes, but it's a really great performer you got for very little money.

The Vivitar will be a fun tool to learn with, but better hold the combination below the lens, not only on the camera. In case you keep it longer and use it e.g. for birding or such I'd try to find some collar with a tripod mount for it

have fun!

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photos mostly taken with manual lenses on Sony NEX5N, Pentax K-x and *istDs: http://flickr.com/photos/kuuan/

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deryn
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to kuuan, Apr 9, 2013

Hi, I have a couple of prime K fit lenses from my Pentax dslr including the 50mm 1.7 and a 28mm.

How are you adapting them to fit a NEX?

Deryn

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Louno
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to deryn, Apr 9, 2013

deryn wrote:

Hi, I have a couple of prime K fit lenses from my Pentax dslr including the 50mm 1.7 and a 28mm.

How are you adapting them to fit a NEX?

Deryn

I ordered this cheap adaptors from ebay : http://www.ebay.com/itm/280540335179?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Note that I didnt receive it yet so, cannot confirm that it does or doesnt work, but according to what I've been reading around, most of these cheap adaptors will work just fine... most of the time... the quality control on these is not very good so some of them might come with defects , i've heard some people say that their adapter wasnt precisely machined and wont allow the lens to focus to infinity, also saw people complain about some of these adaptor having a little bit of debris which if not cleaned could be very bad for your sensor, but you can simply inspect it carefully and vacuum it.

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captura
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to Louno, Apr 10, 2013

If only the Vivitar 28-200mm was Komine-made....but it's not.

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ProfHankD
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to Louno, Apr 10, 2013

Louno wrote:

many of the lenses that were recommended were said to be available at 25-35$ but when looking around on ebay a lot of them were more like 50-75$ plus 10 to 30$ of shipping,

You need to understand eBay. You can pay many times the going rate if you rush and really want a particular thing (are not willing to lose a bidding war). I've paid an average of less than $30 per lens (shipped) for my eBay purchases, but I've been doing my lens shopping with complete willingness for it to take 3-5 tries and months to get the lens I want. If I had been set on getting each of the lenses the first time I bid on them, the average would have been more like $100+ per lens.

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Richie Beans
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to ProfHankD, Apr 10, 2013

Why a pentax lens? You can find plenty of Minoltas for less than 30. Those vivitars are pretty useless.

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Louno
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to Richie Beans, Apr 10, 2013

Richie Beans wrote:

Why a pentax lens? You can find plenty of Minoltas for less than 30. Those vivitars are pretty useless.

Why? Well... i dont know, this is why I was asking for opinions? ... but its too late now, i bought both, 25$ for the pentax, 35$ for the vivitar. Dont have the adapter yet so cant try them out.

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ProfHankD
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Re: Good buy? SMC Pentax-A 50mm f1.7 + Vivitar 28-200mm f3.5-5.3
In reply to Louno, Apr 11, 2013

Louno wrote:

Why? Well... i dont know, this is why I was asking for opinions? ... but its too late now, i bought both, 25$ for the pentax, 35$ for the vivitar. Dont have the adapter yet so cant try them out.

That's fine. These will very likely be the first of many old lenses you buy.  Welcome to LBA (lens buying addiction)!  

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