Worth getting the Pentax 15mm HD if you have the Pentax 21MM lens already?

redrockcoulee · 02-25-2018, 02:48 PM - **1 Like**

Originally posted by SSGGeezer

Since I have the DA15 does this thread mean I have to acquire a DA 21?

Yes that is exactly what it means. I started with the 15, then the 70 then I needed the 21 and having the 3 limited I replaced my Da 35 2.4 with the 40 limited. It does not matter it which order you buy them but buy them you must.

Saltwater Images · 02-25-2018, 03:59 PM - **2 Likes**

Originally posted by SSGGeezer

Since I have the DA15 does this thread mean I have to acquire a DA 21?

Indeed it does:-)

**clackers** · 02-25-2018, 04:03 PM - **1 Like**

Originally posted by SSGGeezer

Since I have the DA15 does this thread mean I have to acquire a DA 21?

Well, that's the law!

You could just walk around in life with nothing but that little pancake.

**mikesbike** · 02-25-2018, 04:57 PM - **1 Like**

One great thing about the DA 15mm Limited is its very compact size. it matches up well with a number of combos, and it can fit into the front accessory pocket of my belt/shoulder camera holster! So I can have a zoom lens on-camera, or the DA 21mm LTD, with no carrying inconvenience for having the DA 15mm LTD along as well.

**monochrome** · 02-25-2018, 05:00 PM - **2 Likes**

Originally posted by SSGGeezer

Since I have the DA15 does this thread mean I have to acquire a DA 21?

If you read every post, you need the 15/21/35/70. At that point the 40 is good enough to add in as a one-lens option for casual shooting. Of course you’ll want the 20-40 in reserve for those times that one lens isn’t enough but you don’t want to carry a bag. And then SMC is better than HD for starbursts, but the HD Limiteds have rounded blades, so you’ll need both coating formulas for the 15 and 21. At that point, WTH, the used SMC lenses are so inexpensive, just get two complete sets.

Silver and Black.

The real story is the 21/40/70 kit covers most prime lens needs. The 15/4 is really a specialty lens that you’ll want if you’ll use it. Likewise the 35 Macro is a special use lens that punches above its weight. It isn’t so much what you ‘need’ as whether your goals require the properties of the 15 AND the 21.

SSGGeezer · 02-25-2018, 05:25 PM - **1 Like**

I love the 15/4 but already have the HD 20-40 so the DA 21 seems a bit redundant, but I am impressed by what I see posted here image wise. I have an SMC version and see no need for an HD version of the 15. And the 70 is nice but I have the FA 77 so don't really see the need for that one either.

GlennG · 02-25-2018, 06:19 PM - **1 Like**

Originally posted by normhead

I eventually went for the Sigma 8-16. Now there's a UWA lens.

Why do you say that, Norm? Why not give it a review in the lens review section?

---------- Post added Feb 25th, 2018 at 07:26 PM ----------

Originally posted by Theov39

Worth getting the Pentax 15mm HD if you have the Pentax 21MM lens already?

Yes, unless you already have something good that is wider than 21. I could not imagine having a lens set with 21 as my widest. I'd be limited is a large way. The question is....how wide do you need to go? Would the 15 be enough? It would be for me, but everyone's needs and wants vary.

Sandy Hancock · 02-25-2018, 06:27 PM - **2 Likes**

Owning a DA21 by no means gets you out of the need for a DA15.

Resistance is useless.

mannyquinto · 02-25-2018, 07:40 PM - **1 Like**

Resistance is futile. You need to have both!

normhead · 02-25-2018, 07:56 PM - **3 Likes**

Originally posted by GlennG

Why do you say that, Norm? Why not give it a review in the lens review section?

A few Sigma 8-16 examples....

Checkout the low distortion of this horizon, and that's at 8mm.

SpartanD63 · 02-25-2018, 08:04 PM - **1 Like**

I used to have a 15mm LTD and I can honestly say that it's very much a specialty tool, but for what it does, it's FANTASTIC.

GlennG · 02-25-2018, 08:22 PM - **1 Like**

Originally posted by normhead

A few Sigma 8-16 examples....

Very nice. Thanks for sharing. I can understand now why you like the lens so much.

maw · 02-25-2018, 08:27 PM - **1 Like**

Originally posted by Theov39

Worth getting the Pentax 15mm HD if you have the Pentax 21MM lens already?

I have chosen the triad 15mm, 35mm, 70mm in APS equivalent to about 23,53,107, so I find them suitable for many occasions and very light weight. It depends on subjective requirements.

Below are the reviews of all four,

Pentax SMC-DA 15mm f/4 AL ED Limited - Review / Test Report

Pentax SMC-DA 21mm f/3.2 AL Limited - Review / Test Report

Pentax SMC DA 35mm f/2.8 Limited macro - Review / Test Report

Pentax SMC DA 70mm f/2.4 Limited - Review / Lab Test

Quote:

normhead

I had the Sigma 8-16 is a good optic, but you can't use filters, that's why I sold it.

Sandy Hancock · 02-25-2018, 08:41 PM - **3 Likes**

The Sigma 8-16 is a fine lens. I sold mine because the size seemed at odds with my goals for APS-C gear, but it gave me some memorable images despite their voracious need for aggressive processing.

It can change an ordinary view into something extraordinary.

pakinjapan · 02-25-2018, 08:55 PM - **1 Like**

DA★ 11-18mm is ..... coming. Not sure when but that is another option to consider. I might get that one and sale both 15 and 21... may be keep 21, it so small.

if you only look at prime, I think 15 is good. I like the SMC version more... or may be stitch 2 images of da21 together? I often go out with 21 only and sometime I have to stitch 2 - 3 images from the 21.

02-25-2018, 05:00 PM - 2 Likes	#20
monochrome Loyal Site Supporter Join Date: Mar 2008 Location: Working From Home Photos: Gallery \| Albums Posts: 26,276	Originally posted by SSGGeezer Since I have the DA15 does this thread mean I have to acquire a DA 21? If you read every post, you need the 15/21/35/70. At that point the 40 is good enough to add in as a one-lens option for casual shooting. Of course you’ll want the 20-40 in reserve for those times that one lens isn’t enough but you don’t want to carry a bag. And then SMC is better than HD for starbursts, but the HD Limiteds have rounded blades, so you’ll need both coating formulas for the 15 and 21. At that point, WTH, the used SMC lenses are so inexpensive, just get two complete sets. Silver and Black. The real story is the 21/40/70 kit covers most prime lens needs. The 15/4 is really a specialty lens that you’ll want if you’ll use it. Likewise the 35 Macro is a special use lens that punches above its weight. It isn’t so much what you ‘need’ as whether your goals require the properties of the 15 AND the 21. Last edited by monochrome; 02-25-2018 at 05:22 PM.

02-25-2018, 07:56 PM - 3 Likes	#25
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Originally posted by GlennG Why do you say that, Norm? Why not give it a review in the lens review section? A few Sigma 8-16 examples.... Checkout the low distortion of this horizon, and that's at 8mm. Last edited by normhead; 02-25-2018 at 08:23 PM.

02-25-2018, 08:27 PM - 1 Like	#28
maw Pentaxian Join Date: Feb 2014 Location: Sassari (Italy) Posts: 1,118	Originally posted by Theov39 Worth getting the Pentax 15mm HD if you have the Pentax 21MM lens already? I have chosen the triad 15mm, 35mm, 70mm in APS equivalent to about 23,53,107, so I find them suitable for many occasions and very light weight. It depends on subjective requirements. Below are the reviews of all four, Pentax SMC-DA 15mm f/4 AL ED Limited - Review / Test Report Pentax SMC-DA 21mm f/3.2 AL Limited - Review / Test Report Pentax SMC DA 35mm f/2.8 Limited macro - Review / Test Report Pentax SMC DA 70mm f/2.4 Limited - Review / Lab Test Quote: normhead I had the Sigma 8-16 is a good optic, but you can't use filters, that's why I sold it. Last edited by maw; 02-25-2018 at 08:41 PM.

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02-25-2018, 02:48 PM - 1 Like	#16
redrockcoulee Pentaxian Join Date: Nov 2009 Location: Medicine Hat Posts: 2,306	Originally posted by SSGGeezer Since I have the DA15 does this thread mean I have to acquire a DA 21? Yes that is exactly what it means. I started with the 15, then the 70 then I needed the 21 and having the 3 limited I replaced my Da 35 2.4 with the 40 limited. It does not matter it which order you buy them but buy them you must.

02-25-2018, 03:59 PM - 2 Likes	#17
Saltwater Images Veteran Member Join Date: Nov 2014 Location: Newfoundland Photos: Gallery Posts: 501	Originally posted by SSGGeezer Since I have the DA15 does this thread mean I have to acquire a DA 21? Indeed it does:-)

02-25-2018, 04:03 PM - 1 Like	#18
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	Originally posted by SSGGeezer Since I have the DA15 does this thread mean I have to acquire a DA 21? Well, that's the law! You could just walk around in life with nothing but that little pancake.

02-25-2018, 04:57 PM - 1 Like	#19
mikesbike Site Supporter Join Date: Dec 2016 Location: Southeastern Michigan Posts: 4,549	One great thing about the DA 15mm Limited is its very compact size. it matches up well with a number of combos, and it can fit into the front accessory pocket of my belt/shoulder camera holster! So I can have a zoom lens on-camera, or the DA 21mm LTD, with no carrying inconvenience for having the DA 15mm LTD along as well.

02-25-2018, 05:25 PM - 1 Like	#21
SSGGeezer Veteran Member Join Date: Jun 2017 Location: Indiana, U.S. Photos: Gallery \| Albums Posts: 4,845	I love the 15/4 but already have the HD 20-40 so the DA 21 seems a bit redundant, but I am impressed by what I see posted here image wise. I have an SMC version and see no need for an HD version of the 15. And the 70 is nice but I have the FA 77 so don't really see the need for that one either.

02-25-2018, 06:19 PM - 1 Like	#22
GlennG Veteran Member Join Date: Aug 2010 Location: Houston, Texas Posts: 824	Originally posted by normhead I eventually went for the Sigma 8-16. Now there's a UWA lens. Why do you say that, Norm? Why not give it a review in the lens review section? ---------- Post added Feb 25th, 2018 at 07:26 PM ---------- Originally posted by Theov39 Worth getting the Pentax 15mm HD if you have the Pentax 21MM lens already? Yes, unless you already have something good that is wider than 21. I could not imagine having a lens set with 21 as my widest. I'd be limited is a large way. The question is....how wide do you need to go? Would the 15 be enough? It would be for me, but everyone's needs and wants vary.

02-25-2018, 06:27 PM - 2 Likes	#23
Sandy Hancock Moderator Site Supporter Join Date: Feb 2012 Location: Adelaide Hills, South Australia Photos: Gallery \| Albums Posts: 11,267	Owning a DA21 by no means gets you out of the need for a DA15. Resistance is useless.

02-25-2018, 07:40 PM - 1 Like	#24
mannyquinto Senior Member Join Date: Nov 2009 Location: manila Posts: 152	Resistance is futile. You need to have both!

02-25-2018, 08:04 PM - 1 Like	#26
SpartanD63 Veteran Member Join Date: Aug 2012 Photos: Gallery \| Albums Posts: 351	I used to have a 15mm LTD and I can honestly say that it's very much a specialty tool, but for what it does, it's FANTASTIC.

02-25-2018, 08:22 PM - 1 Like	#27
GlennG Veteran Member Join Date: Aug 2010 Location: Houston, Texas Posts: 824	Originally posted by normhead A few Sigma 8-16 examples.... Very nice. Thanks for sharing. I can understand now why you like the lens so much.

02-25-2018, 08:41 PM - 3 Likes	#29
Sandy Hancock Moderator Site Supporter Join Date: Feb 2012 Location: Adelaide Hills, South Australia Photos: Gallery \| Albums Posts: 11,267	The Sigma 8-16 is a fine lens. I sold mine because the size seemed at odds with my goals for APS-C gear, but it gave me some memorable images despite their voracious need for aggressive processing. It can change an ordinary view into something extraordinary.

02-25-2018, 08:55 PM - 1 Like	#30
pakinjapan Veteran Member Join Date: Jun 2012 Location: Tokyo Photos: Gallery Posts: 1,041	DA★ 11-18mm is ..... coming. Not sure when but that is another option to consider. I might get that one and sale both 15 and 21... may be keep 21, it so small. if you only look at prime, I think 15 is good. I like the SMC version more... or may be stitch 2 images of da21 together? I often go out with 21 only and sometime I have to stitch 2 - 3 images from the 21.

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