Why would I buy an fa31 if I have the da 20-40?

TroutHunterJohn · 04-14-2015, 04:24 PM

Is it just lba or do I need the fa 31 to,,, complete my holy trinity collection.

Also, my 20-40 can be my outdoor lens, water resistant and all that. And the 31 can be my fast indoor lens.

Does the 31 really deliver a real advantage over my 20-40?

Adam · 04-14-2015, 04:47 PM - **2 Likes**

Yup, you definitely need the 31!

**dadipentak** · 04-14-2015, 04:51 PM

LBA is definitely at work. Yes, the FA31 will deliver advantages the zoom can't match. Your scheme is plausible (but it would be a shame to keep the Ltd away from the great outdoors.) All you need is courage and cash. ;~)

Anthen · 04-14-2015, 05:02 PM

If you think it will, then it definitely will... As long as you have faith in the magic of the 31mm!

**grahame** · 04-14-2015, 05:36 PM - **1 Like**

I have DA 21, DA 35/2.8, and FA 43 (just sold DA 40 XS), and I thought I will never need 20-40. I bought it. Then I thought I had 20-40, and all these lenses, so I won't need 31 (forgot to mention I have Sigma Art 30/1.4). Now I have 31 side by side with these lenses. :-)

SpecialK · 04-14-2015, 05:44 PM - **1 Like**

If you need to ask, you don't need to ask.

Driline · 04-14-2015, 05:48 PM

I have the DA*16-50 and FA 31. I've thought the same question as you. The 31 really is a special lens. The 16-50 cannot replace it and neither can the DA 20-40 IMHO. But I use and admire both.

**boriscleto** · 04-14-2015, 05:55 PM - **1 Like**

Think of the thousands of pixies who are sacrificed to make the Holy Trinity.

MadMathMind · 04-14-2015, 06:03 PM

The other way works: why would you buy the DA20-40 if you already have the FA31?

Heck, I have the Sigma 18-35 and now I have the FA31 on the way....but the full frame annoucement had a lot to do with that.

**monochrome** · 04-14-2015, 06:04 PM

Originally posted by boriscleto

Think of the thousands of pixies who are sacrificed to make the Holy Trinity.

No NO - they're not sacrificed. Sure, kidnapped, separated from their fellow pixies and pixie families, forced to work like tiny slaves - but we're not barbarians. We don't have tall blonde women in white robes chanting lamentations while we burn incense in the factory and call on Photonis before raising a curved sword . . . . . we don't SACRIFICE the poor little things.

GaryH · 04-14-2015, 06:22 PM

I have the 16-50, 20-40 and the trinity. The 20-40 is sharper than the 16-20 and the 31 is sharper than all of them. You need it too......��

**dadipentak** · 04-14-2015, 06:23 PM

Originally posted by monochrome

we don't SACRIFICE the poor little things.

Quite the contrary, we do our utmost to find them suitable placements where they reach their full potential.

yorik · 04-14-2015, 06:34 PM

Originally posted by monochrome

No NO - they're not sacrificed. Sure, kidnapped, separated from their fellow pixies and pixie families, forced to work like tiny slaves - but we're not barbarians. We don't have tall blonde women in white robes chanting lamentations while we burn incense in the factory and call on Photonis before raising a curved sword . . . . . we don't SACRIFICE the poor little things.

... we hold'em upside down and shake vigorously to get the dust out.

**boriscleto** · 04-14-2015, 06:45 PM

Pixie Dust is made from Pixies. Just like Soylent Green is made from people

officiousbystander · 04-14-2015, 07:18 PM - **3 Likes**

Originally posted by SpecialK

If you need to ask, you don't need to ask.

In other words this forum is a venue for members to ask permission to do something they're going to do anyway.

04-14-2015, 04:24 PM	#1
TroutHunterJohn Veteran Member Join Date: Jan 2014 Location: Olympia, WA Photos: Gallery Posts: 352	Why would I buy an fa31 if I have the da 20-40? Is it just lba or do I need the fa 31 to,,, complete my holy trinity collection. Also, my 20-40 can be my outdoor lens, water resistant and all that. And the 31 can be my fast indoor lens. Does the 31 really deliver a real advantage over my 20-40?

04-14-2015, 04:47 PM - 2 Likes	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	Yup, you definitely need the 31! Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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04-14-2015, 04:51 PM	#3
dadipentak Site Supporter Join Date: Jul 2008 Location: Baltimore, Maryland Photos: Gallery Posts: 11,590	LBA is definitely at work. Yes, the FA31 will deliver advantages the zoom can't match. Your scheme is plausible (but it would be a shame to keep the Ltd away from the great outdoors.) All you need is courage and cash. ;~)

04-14-2015, 05:02 PM	#4
Anthen Forum Member Join Date: Mar 2014 Posts: 79	If you think it will, then it definitely will... As long as you have faith in the magic of the 31mm!

04-14-2015, 05:36 PM - 1 Like	#5
grahame Loyal Site Supporter Join Date: Aug 2011 Photos: Albums Posts: 2,041	I have DA 21, DA 35/2.8, and FA 43 (just sold DA 40 XS), and I thought I will never need 20-40. I bought it. Then I thought I had 20-40, and all these lenses, so I won't need 31 (forgot to mention I have Sigma Art 30/1.4). Now I have 31 side by side with these lenses. :-)

04-14-2015, 05:44 PM - 1 Like	#6
SpecialK Pentaxian Join Date: Dec 2006 Location: So California Photos: Gallery Posts: 16,482	If you need to ask, you don't need to ask.

04-14-2015, 05:48 PM	#7
Driline Pentaxian Join Date: Dec 2012 Location: IOWA Where the Tall Corn Grows Photos: Gallery Posts: 3,705	I have the DA*16-50 and FA 31. I've thought the same question as you. The 31 really is a special lens. The 16-50 cannot replace it and neither can the DA 20-40 IMHO. But I use and admire both.

04-14-2015, 05:55 PM - 1 Like	#8
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,477	Think of the thousands of pixies who are sacrificed to make the Holy Trinity.

04-14-2015, 06:03 PM	#9
MadMathMind Veteran Member Join Date: Dec 2013 Location: Houston, TX Photos: Gallery Posts: 1,717	The other way works: why would you buy the DA20-40 if you already have the FA31? Heck, I have the Sigma 18-35 and now I have the FA31 on the way....but the full frame annoucement had a lot to do with that.

04-14-2015, 06:04 PM	#10
monochrome Loyal Site Supporter Join Date: Mar 2008 Location: Working From Home Photos: Gallery \| Albums Posts: 26,276	Originally posted by boriscleto Think of the thousands of pixies who are sacrificed to make the Holy Trinity. No NO - they're not sacrificed. Sure, kidnapped, separated from their fellow pixies and pixie families, forced to work like tiny slaves - but we're not barbarians. We don't have tall blonde women in white robes chanting lamentations while we burn incense in the factory and call on Photonis before raising a curved sword . . . . . we don't SACRIFICE the poor little things.

04-14-2015, 06:22 PM	#11
GaryH Site Supporter Join Date: Oct 2009 Location: Philadelphia, Pa Photos: Gallery Posts: 764	I have the 16-50, 20-40 and the trinity. The 20-40 is sharper than the 16-20 and the 31 is sharper than all of them. You need it too......��

04-14-2015, 06:23 PM	#12
dadipentak Site Supporter Join Date: Jul 2008 Location: Baltimore, Maryland Photos: Gallery Posts: 11,590	Originally posted by monochrome we don't SACRIFICE the poor little things. Quite the contrary, we do our utmost to find them suitable placements where they reach their full potential.

04-14-2015, 06:34 PM	#13
yorik Veteran Member Join Date: Jan 2012 Location: Scotts Valley, CA Photos: Gallery Posts: 991	Originally posted by monochrome No NO - they're not sacrificed. Sure, kidnapped, separated from their fellow pixies and pixie families, forced to work like tiny slaves - but we're not barbarians. We don't have tall blonde women in white robes chanting lamentations while we burn incense in the factory and call on Photonis before raising a curved sword . . . . . we don't SACRIFICE the poor little things. ... we hold'em upside down and shake vigorously to get the dust out.

04-14-2015, 06:45 PM	#14
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,477	Pixie Dust is made from Pixies. Just like Soylent Green is made from people

04-14-2015, 07:18 PM - 3 Likes	#15
officiousbystander Pentaxian Join Date: Mar 2014 Location: Sydney Photos: Gallery Posts: 916	Originally posted by SpecialK If you need to ask, you don't need to ask. In other words this forum is a venue for members to ask permission to do something they're going to do anyway.