FA v D-FA 100mm 1:2.8 Macro


Mannesty

Link Posted 24/03/2010 - 09:19
Has anybody used both of these? Any thoughts, comparisons, etc?

This much I know, D-FA is much lighter than the FA. It has 49mm filter thread (FA is 58mm). It has quick shift MF.

Is there much, if any, difference in image quality?

Did you switch from an FA to a D-FA version? Any regrets?
Peter E Smith

My flickr Photostream

Clarky

Link Posted 24/03/2010 - 12:32
Peter
I had both the FA and the D-FA for a while, I would give IQ too the FA but only barely, there isn't much between them but the FA just had a little more punch to it than the D-FA.

From a usability point of view The D-FA with Quick shift and its lighter weight is a winner, but I found it a little slower AF than the FA. The D-FA will also suit your Pentax AF160FC ring flash better, its pretty much designed for that lens and they compliment each other well.

The build quality of the FA is better than the D-FA also. The D-FA feels a little flimsy in comparison.

It really comes down to what you feel will suit you and your shooting style. I am not going to say sell the FA and get the D-FA its really your call.

I had the D-FA before getting hold of the FA and then I picked up a Voigtlander 125mm 2.5 (which is another level again) and then had to decide which one too sell the FA or the D-FA?? or both!! I chose to sell the D-FA in the end but could just as easily have parted with the FA also.

Sorry I haven't made it all that easy for you too decide

I know what Buy a Voigtlander its a much easier choice
Camera:|K-7|
Pentax Lenses:|DA12-24/f4 ED AL|DA35Ltd Macro|FA31Ltd|FA77Ltd|FA50/1.4|F70-210|FA20-35 f4/AL|A*200/f4 Macro ED|A50/1.7|A50 Macro f2.8|1.7xAF adapter|
Voigtlander|125/f2.5SL Macro APO Lanthar|
Sigma Lenses:|EX DG 100-300 f4|2X & 1.4X TC|
Flashes:|AF540FGZx2|RingFlash AF160FC|
Last Edited by Clarky on 24/03/2010 - 12:34

Helpful

hefty1

Link Posted 24/03/2010 - 12:56
Clarky wrote:
I know what Buy a Voigtlander its a much easier choice

Does that mean yours is for sale?
Joining the Q

Mannesty

Link Posted 24/03/2010 - 13:04
Thanks Clarky. Good info. Though I didn't ask in my original post, I am interested to read your comments re the AF160 flash.

It's all Huw's (Greytop) fault for whetting my appetite with his almost giveaway price for his D-FA. I didn't need it, I didn't win it, now I want one.

I have the FA version, but I think I'll try a D-FA version for its suitability with my flash.

Thanks again.
Peter E Smith

My flickr Photostream

Anvh

Link Posted 24/03/2010 - 14:17
The optical formula is so good as the same.

FA



DFA



I believe John have said that both are the same as well but I could be mistaken.

The DFA indeed feels a bit flimsy that's why I took interests in the DFA WR lately, you pay a bit extra but you get the quality of the limited lenses for that, you do lose the aperture ring though.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

Unlocker

Link Posted 24/03/2010 - 14:19
My next purchase is most likely to be the new WR version of the D-FA, as having tried one, I just want one!

It would definately be very interesting to have a 'Macro Shootout' just to see what the differences are, if any, in the picture quality.

If Hefty is up for having one of his (in)famous lens reviews, we do have an FA 100mm he can borrow, that he can compare with his D-FA!

Of course, if I can fund the WR purchase without having to sell the FA, I can do a comparison as well!

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johnriley

Link Posted 24/03/2010 - 16:22
Anvh wrote:
The optical formula is so good as the same.

FA



DFA



I believe John have said that both are the same as well but I could be mistaken.

The DFA indeed feels a bit flimsy that's why I took interests in the DFA WR lately, you pay a bit extra but you get the quality of the limited lenses for that, you do lose the aperture ring though.

The end results are virtually the same, and the designs are almost the same, but looking at those two schematics they may be very similar but they are definitely different.
Best regards, John

Anvh

Link Posted 24/03/2010 - 17:26
Indeed John seems like they upgraded the FA design a bit. The basis looks the same with some variation and the diaphragm blades are placed differently but we can also wander how accurate the drawings are.
At least it's close enough to say something, at least the diaphragm is placed further back with the DFA.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

johnriley

Link Posted 24/03/2010 - 17:32
When you see the lenses side by side it's obvious they are very different beasts, but fortunately it doesn't seem to have any practical effect on the end results.
Best regards, John

Anvh

Link Posted 24/03/2010 - 17:42
At least we know where the DFA has his genes from

It could be they improved the way the light hit the sensor, I believe they said the DFA was optimized for digital. Digital sensor like to have the light fall on the sensor as straight as possible.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

hefty1

Link Posted 24/03/2010 - 23:52
Unlocker wrote:
If Hefty is up for having one of his (in)famous lens reviews, we do have an FA 100mm he can borrow, that he can compare with his D-FA!

Clarky's sending the Voigtlander over did you say?
Joining the Q

Clarky

Link Posted 25/03/2010 - 00:31
hefty1 wrote:
Unlocker wrote:
If Hefty is up for having one of his (in)famous lens reviews, we do have an FA 100mm he can borrow, that he can compare with his D-FA!

Clarky's sending the Voigtlander over did you say?

Its in the post mate.
Camera:|K-7|
Pentax Lenses:|DA12-24/f4 ED AL|DA35Ltd Macro|FA31Ltd|FA77Ltd|FA50/1.4|F70-210|FA20-35 f4/AL|A*200/f4 Macro ED|A50/1.7|A50 Macro f2.8|1.7xAF adapter|
Voigtlander|125/f2.5SL Macro APO Lanthar|
Sigma Lenses:|EX DG 100-300 f4|2X & 1.4X TC|
Flashes:|AF540FGZx2|RingFlash AF160FC|

hefty1

Link Posted 25/03/2010 - 14:37
For those interested in getting a D-FA100 there's a listing on eBay currently for some new/boxed/ex-demo examples for just 299.95 each (free p&p).

I'm not affiliated with the seller and I already have one but for anybody looking for one I can't imagine getting one cheaper!
Joining the Q

smc

Link Posted 25/03/2010 - 21:41
hefty1 wrote:
For those interested in getting a D-FA100 there's a listing on eBay currently for some new/boxed/ex-demo examples for just 299.95 each (free p&p).

I'm not affiliated with the seller and I already have one but for anybody looking for one I can't imagine getting one cheaper!

I bought mine last week for the same price from a different seller. I think it's an excellent lens and very quick focusing in the normal range. One went this week for 266 on ebay and Ffordes had an FA version for 299.

MrCynical

Link Posted 26/03/2010 - 08:54
I love my D-FA (I got it at a good price in its Samsung disguise) and quickshift is a big part of the usability. Just have to remember that it doesn't quickshift if you have the camera set to AF-C to deal with the damn flowers being blown about by a breeze!
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