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08-23-2013, 04:50 AM   #16
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QuoteOriginally posted by boriscleto Quote
Even though it is labeled a DA it still has a more or less FF image circle...
That bears no relation to the field of view. Only the focal length and the size of the sensor will drive the FOV.

To answer the question, a 50 is a 50 so the FOV will be identical.

08-23-2013, 05:04 AM   #17
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QuoteOriginally posted by bdery Quote
That bears no relation to the field of view.
I wasn't implying that it did. It was more of a BTW statement.
08-23-2013, 06:17 AM   #18
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I can second that Tamron 28-75. It's a great walk around lens and good for portraits.
08-25-2013, 06:33 PM   #19
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So I think I've narrowed it down to either the DA 1.8 50mm new for $181 at Adorama/B&H, or the FA 1.4 50mm used, of which there are 4 or 5 currently in the marketplace from the low to mid $200 range. Anyone have experience with both?

08-26-2013, 06:13 AM   #20
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QuoteOriginally posted by pdxfive Quote
So I think I've narrowed it down to either the DA 1.8 50mm new for $181 at Adorama/B&H, or the FA 1.4 50mm used, of which there are 4 or 5 currently in the marketplace from the low to mid $200 range. Anyone have experience with both?

Have you read the reviews in this section? Pentax Lenses - Pentax Lens Reviews & Lens Database

Some time spent there might help make a tough choice easier.
08-26-2013, 06:42 AM   #21
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I don't have the FA, but I do have the A 50/1.4.

Index of Lenses in Lens Sample Archive

The A, like most 1.4s does have a bit of halo at 1.4.




Personally, I think some softness is desirable in a portrait lens.

I don't have the DA 50/1.8 either, but I do have the FA 50/1.7. It is sharp wide open. Maybe not razor sharp, but good enough...



Last edited by boriscleto; 08-26-2013 at 06:52 AM.
08-26-2013, 07:37 AM   #22
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OP, I have a new baby and both the DA 35 2.4 and an FA 50 1.7. I'd really urge you to go with the 35. It is PLENTY sharp with great color reproduction, and it's much more useable than the 50. It focuses very well up close, so if you want to get tight you can just move closer. Working with a 50mm focal length indoors can be a real PITA, especially if you want to get baby and Mom in the same frame. I'll post some examples when I get home.
08-27-2013, 12:11 AM   #23
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If you don't mind used, then an F50mm 1.7 from KEH.com may be one to consider...

Here's a few samples taken with an F50 1.7 that I've had since 1989:









08-31-2013, 12:40 PM   #24
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When my wife was pregnant of our second it gave me a good excuse to buy the Sigma 50 1.4.
But my most used lens for our little boy was my good old 30 1.4
08-31-2013, 06:21 PM   #25
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I was using an M50 1.4 and decided I needed a fifty with autofocus too. I got some wonderful pictures with that lens, and the bokeh is melted butter, but the ability to determine whether you nailed the focus in the viewfinder led to a lot of 'almost nailed it' shots when reviewing on the big screen. After lots of reading I picked up the F50 1.7 that bdery also referred to. It is a fantastic lens and I haven't regretted it one bit. A wider field of view could be handy, but the 40's can't touch the max 1.7 aperture of that lens and it is wonderfully sharp wide open. I would recommend that, but I am admittedly quite biased.
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