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05-31-2011, 07:05 PM   #1
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Pls help on choosing A or FA lens

Dear All,

Currently I have LX, MZ-3 and Z-1p with A20/2.8, A35/2.8, A50/2.8macro and A100/2.8. After I have got my FA85, my wife is so happy that she can use my camera(Z-1P/MZ-3) finally. Before she doesn't know how to operate the manual LENS. Actually I am happy too because she can take photo for me and the baby now. So suddenly I have an idea in my brain "Is it good to sell all my A lens and buy F/FA instead?". The replacement will be FA20, F28/2.8 and F50/1.4|F50/2.8marco. What do you guys think? Is it a stupid idea?.

And anyone have F50/1.4 and F50/1.7? Beside of money, is the 1.4 much better than the 1.7?


Many Thanks!!

05-31-2011, 09:17 PM   #2
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You would spend a lot of money to buy the FA replacements for your A lenses. Some would not be available new. It also depends whether you want to use them with you film cemeras or with a future Pentax digital camera.

A20 f2.8 replace with FA 20 f2.8 USED - or DA 21 f3.2 for digital
A35 f2.8 replace with FA 35 f2.0 sometimes available new - or DA 35 f2.4 or DA Macro 35 f2.8 for digital
A50 f2.8 macro replace with D FA 50 f2.8 NEW for film or digital
A100 f2.8 replace with D FA Macro 100 f2.8 USED - or D FA Macro 100 f2.8 WR for digital

People reckon that the 50 f1.7 is sharper wide open than the 50 f1.4

Regards

Chris
05-31-2011, 09:43 PM   #3
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QuoteOriginally posted by seventhdr Quote
People reckon that the 50 f1.7 is sharper wide open than the 50 f1.4
Ah but the 1.4 has smoother bokeh.

And really, don't replace all your lenses. Your lenses are great! Just get an auto-focus zoom your wife can use when she wants to, maybe a Tamron 28-75 f/2.8, or even a Pentax-F 35-70. Or maybe you could pick up an F 50/1.7 and let her use that. You don't need your wife to shoot at 20mm or with a 100mm FA macro, just to get you and baby in the same picture!
05-31-2011, 10:05 PM   #4
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Completely agree. Just toss in a couple of autofocus lenses into your mix and keep all your A lenses. I only have one A lens but I really like it and enjoy using it. For me the A lenses represent a big part of why I shoot pentax, legacy glass. They are really beautiful, a joy to use, and the image quality is so good.

QuoteOriginally posted by Nick Siebers Quote
Ah but the 1.4 has smoother bokeh.

And really, don't replace all your lenses. Your lenses are great! Just get an auto-focus zoom your wife can use when she wants to, maybe a Tamron 28-75 f/2.8, or even a Pentax-F 35-70. Or maybe you could pick up an F 50/1.7 and let her use that. You don't need your wife to shoot at 20mm or with a 100mm FA macro, just to get you and baby in the same picture!


06-01-2011, 09:33 PM   #5
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Thanks for all your advise!!! I will find F28 or F50 instead of selling all my A lens first.
06-01-2011, 09:40 PM   #6
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I agree that you should keep the A lenses and buy a zoom to cover those focal lengths - I +1 the Tamron 28-75 suggestion.

The FA 20 would cost you so very much.... not to mention the others :P.
06-02-2011, 01:21 AM   #7
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Go for it if you are doing just more than a casual photography. I used to have a few manual lenses (see my signature). Although, some of them are brilliant lenses (Helios, M100 for example), I decided to go to all AF route. I get a very little time for photography and experiments and somehow I found AF too convenient for little time I have.

M85/2 -> FA77
A few fifties, Helios -> FA50
M100/4 -> Sigma 105/2.8
Rest -> Tamron 70-200/2.8

FA50/1.4 is a very nice lens, I used to own both F50/1.7 & FA50/1.4 and sold 1.7 since buyer wanted F1.7 and I wanted to get rid of one - both are optically close but FA50/1.4 has smoother bokeh.
06-02-2011, 08:04 AM   #8
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PS. If you do decide to sell your A lenses can I buy a few of them?

06-02-2011, 08:16 AM   #9
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QuoteOriginally posted by 1r0nh31d3 Quote
PS. If you do decide to sell your A lenses can I buy a few of them?
I would happily buy the A 100 2.8 macro .
06-02-2011, 08:23 AM   #10
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For the AF bodies, I would go for the 28-70/F4 lens. It is a real gem and one of the better Pentax lenses. I often use mine in place of the 28-70/F2.8 if not in very low light because at 5.6 or smaller, there is very little difference in the results

Kim
06-02-2011, 09:08 AM   #11
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My thoughts as well. But I'm not sure if it is the macro.

QuoteOriginally posted by paperbag846 Quote
I would happily buy the A 100 2.8 macro .
06-02-2011, 09:20 PM   #12
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QuoteOriginally posted by 1r0nh31d3 Quote
My thoughts as well. But I'm not sure if it is the macro.

I sold A100/MACRO already last year after I got this A100/2.8 non marco. The macro version was a heavy tank. The non marco is really small and compact with nice DOF. You can see the following link for more details.

Pentax-A 100mm F2.8 Reviews - A Series Primes - Pentax Lens Reviews & Pentax Lens Database
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