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Pentax-DA 50mm F1.8 Budget Prime Coming Soon!

To ship in June, following official announcement next week · 05-19-2012 · By PF Staff in Pentax News

Pentax announced the SMC Pentax-DA 50mm F1.8 prime lens back in February at the CP+ 2012 trade show in Japan and also showed us a prototype then. We now expect that next week Pentax will finally release the official technical details for this lens and announce that it's hitting the shelves!

We believe that the lens will start shipping in late June, together with the K-30 (source).

Considering that it's a normal lens, and given the precedent set forth by the SMC Pentax-DA 35mm F2.4 lens, we're sure that this 50mm will deliver great image quality while still being very affordable.

We will update the Lens Database with full details as soon as they are released. At this point we know the following specifications for this 50mm:

  • Large maximum aperture for shallow depth of field: F1.8
  • 6 lens elements in 5 groups
  • Diagonal field of view: 32 degrees
  • 7 aperture blades, rounded for a smooth bokeh
  • SP coated front element repels dirt and grease and is easy to clean
  • Image format: APS-C
  • Screwdrive autofocus
  • Plastic bayonet
  • Not a pancake, but still quite compact with a length of 38.5mm/1.5 inches
  • 52mm filter diameter
  • Light weight: 122g/4.3 oz
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About the author: Various writers regularly contribute articles to the Pentax Forums homepage blog. More recent articles are published under each author's forum username. We hope you enjoy our guides and news coverage!

Tags: Pentax DA 50mm F1.8, Pentax 50mm, 50mm F1.8, pentax 50mm lens, dslr lens, k-mount

More Posts in Pentax News | More Posts by PF Staff

Next Story: Full Specs for the DA 50mm F1.8

Previous: Pentax K-30 Countdown

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Darlene [Delete] May 21st, 2012 4:59PM

Pentax sticks it to you for the price of lenses. I am in both Nikon and Pentax and trying to decide which to buy a new body in. My Nikon 50 mm f1.8, nice and sharp, cost me $50 about six years ago and sells for under $200 now. This really turns me off that Pentax is overcharging for their lenses. Yes, the new K30 is nice and tempting but why not make do with my K-r (which isn't as bad as some say) and buy a new Nikon body to go with my present and future lenses. Are you listening, Pentax?

boriscleto [Delete] May 21st, 2012 8:42AM

$250, ships in July.

Tony.M [Delete] May 21st, 2012 7:55AM

Officially announced on Pentaximaging!

lguckert79 [Delete] May 20th, 2012 10:22PM

me for one can not wait for this lens and in the review page it says it is = to 75mm on aps-c so it should be set up for FF and you all are right it should be around 100-175 usd look at canikon's cheaper 50's they range from 50 used to 150 new so pentax better get this one right i hope

luftfluss [Delete] May 20th, 2012 10:09PM

"Filter thread of 52mm is a PITA, all but 1 of the limiteds is 49 as is the FA50."

I agree, poor choice by Pentax. I'm not overly keen on 50mm anyway, but this ensures I will never buy this lens.

Mareket [Delete] May 20th, 2012 7:38PM

I get really annoyed with lenses that don't have quick-shift, so it'd be a huge shame if this was lacking it. But yeah it'll probably be like the DA35.

Hoping the bokeh is better than my FA 50 1.4. If it is, I'll consider replacing it. Nice and lightweight, SP coating and good IQ. If it had QS I'd replace the FA 50 without batting an eyelid though. That's pretty much what stops me using my DA 35. Which is a shame.

Nacho_tyr [Delete] May 20th, 2012 6:28PM

for 100 to 120 maybe, the "canno version" cost 110 dollar

twitch [Delete] May 20th, 2012 4:17PM

Filter thread of 52mm is a PITA, all but 1 of the limiteds is 49 as is the FA50.

rbryant [Delete] May 20th, 2012 3:37PM

I hope this lens is as affordable as the DA35. If so, I will buy it the day it comes out for my wife's K-r (and subsequently steal her DA35 to shoot on film).

Alizarine [Delete] May 20th, 2012 9:28AM

holy crap. 7 blades? and I thought the FA 50 1.7 had only six.
I'm getting one.. ugh here goes LBA again.

tibbitts [Delete] May 20th, 2012 9:26AM

It's nice that pentax is introducing more "affordable" lens options, although I'm always disappointed by the lack of a bayonet for a hood. I don't have a lens with a plastic mount so far, so I can't comment on how much that would matter.

Class A [Delete] May 20th, 2012 6:43AM

It is not a normal lens on an APS-C camera.

superdavis [Delete] May 20th, 2012 2:13AM

if this is in the price range of DAL 35 2.4 and deliver the the performance, it will buy it on the first day it comes out ;) And I do not care about metal bayonete or qucik-shift (you have other lenses for that) ;)

DSims [Delete] May 19th, 2012 10:45PM

The reason to get excited about this lens is that historically, Pentax 50mm f/1.7 lenses have had better image quality and sharpness than the f/1.4 lenses, at equivalent apertures when near wide-open. The round aperture blades should be an even greater advantage, since bokeh has been the main weakness of the f/1.7 lenses.

It may even portend the FF camera many are hoping for, being a "normal" at 50mm. But even if it isn't heralding a FF camera it should be a nice lens for about $150 or less.

celebesario [Delete] May 19th, 2012 10:00PM

50mm f1.8 is a must-have lens and Pentax answers my expectation by releasing this one. But I think it should not be more than USD 200?

twitch [Delete] May 19th, 2012 9:02PM

I don't get the excitement over this lens. A FA50 is low to mid $200's secondhand and has 2/3 stop advantage, an aperture ring, a metal mount, and is officially FF compatible.

LegOverHead [Delete] May 19th, 2012 8:51PM

I am definitely going to pick this up for sure! Loving the 35 2.4, must get this too!

LFLee [Delete] May 19th, 2012 6:58PM

Have no problem with plastic lens. But the shinny plastic make it looks cheap. The FA version of plastic lens doesn't have this feel. Nonetheless, if Pentax can make it around $200, will be a great choice. Should bundle it with K-30, but then a non-WR lens attach to a WR body doesn't make sense.

wax [Delete] May 19th, 2012 6:21PM

Since I have the 35mm f2.4, I want so much a 50mm . Please Pentax, bring it soon.And what about a full line of plastics fantastics. Next could be a 16mm f4 or 85mm f2.4, all DALs.

Biro [Delete] May 19th, 2012 4:44PM

I can guarantee you it won't have quick shift. And while that's a great feature to have, its absence hasn't been an issue for me with the DA 35mm f/2.4. I suspect it won't be with this lens, either. I don't think most Pentaxians expect quick shift on a lens like this.

Mareket [Delete] May 19th, 2012 3:52PM

But does it have Quick Shift? That's the most important question methinks. One of the only downsides of the DA 35 is the lack of Quick Shift.

ElrondElensar [Delete] May 19th, 2012 2:54PM

zosxavius: "Looks like the pentax answer to canon's nifty 50."

Why just Canon? Nikon, Sony, and even mirrorless cameras have 50mm F1.8. It's been a pretty standard lens on all mounts for years

meeverett [Delete] May 19th, 2012 2:38PM

I agree, at the right price, this lens will go in my bag. I got the 35 f/2.4 for about $170 and, in spite of all the plastic, I consider it money well spent. If this lens follows the same recipe and isn't much more than $200, I'll go for it.

WillWeaverRVA [Delete] May 19th, 2012 12:49PM

If this lens is inexpensive enough, I'm buying it. I've had some impressive results with the DA35, which is an incredible lens despite all the plastic.

brofkand [Delete] May 19th, 2012 12:21PM

I hope it covers 35mm and is less than $200. Hopefully around $150; $220 for the 35mm 2.4 is a little much I think but apparently it's worth it.

zosxavius [Delete] May 19th, 2012 10:35AM

Looks like the pentax answer to canon's nifty 50. Wish they had a metal mount (and body FWIW). I think I'll stick to my A50 1.7. Its pretty sharp @ f2 and razor sharp @f8. Sharpest lens in my bag actually. I think they can be had for about $50 these days. Kind of hard to pass up for such a great lens. The AF would be great for shooting performances (something I use my 50 a lot for) with only available light. I find that manually focusing results in a lot of sharp microphones but its hard to get the AF to detect eyes and edges of faces. Yeah, it will be interesting to compare this to say an FA50 1.7. I really hate the construction of these budget lenses though. Lenses used to be works of art, now they are just cheap looking.

Biro [Delete] May 19th, 2012 9:55AM

I'm looking forward to this lens with great anticipation. I have a number of DA Limited primes: the 15, 21 and 70. I was thinking about the 40 but I have the DA 35mm f/2.4 and I am very pleased with that. The plastic mount is not an issue. If this new DA 50 is as good as the 35 and goes for about the same price, I am far more likely to pick it up than the 40 Limited... especially since the tightening up on Pentax lens prices in general.

zmohie [Delete] May 19th, 2012 7:56AM

•Plastic bayonet
why pentax go in this way.canikon have a budget one in metal bayonet

LowVoltage [Delete] May 19th, 2012 7:34AM

I've been saving my dimes, Amazon gift cards, and credit card cash back awards for this very lens. Oh, the anticipation...

Lance Tsai [Delete] May 19th, 2012 7:23AM

I am curious how much it will be.

JFN [Delete] May 19th, 2012 6:49AM

Can't wait to see a comparison between this lens and the FA 50mm f/1,7 lens. And it'll be interesting to see if this one works on a full 35mm body (film) without vignetting.