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jhlxxx · 07-08-2016, 07:02 PM

Guys, I hope I am wrong but also I hope I am right.

I just tried my pentax da 50 f1.8 and manually set the k1 to full frame mode. I took some the photos, no dark side on the photos.....Then I set it to crop mode, everything is normal..

Does it mean this lens support full frame??!!

Please test!!

Adam · 07-08-2016, 07:05 PM - **1 Like**

Originally posted by jhlxxx

Guys, I hope I am wrong but also I hope I am right.

I just tried my pentax da 50 f1.8 and manually set the k1 to full frame mode. I took some the photos, no dark side on the photos.....Then I set it to crop mode, everything is normal..

Does it mean this lens support full frame??!!

Please test!!

Yes, it does support FF with minimal vignetting. The K-1 does not have correction profiles for it in FF mode, however.

**disasterfilm** · 07-08-2016, 07:42 PM

Another thing to note is if you're using composition adjustment to shift the sensor, whichever direction you're shifting the frame will have more severe black corners where the image circle stops. You can crop these away such that the final image is far larger than the APS-C option, but you will not have a fully impeded frame.

geedee · 07-09-2016, 01:31 AM - **1 Like**

Bought the DA 50 f1.8 recently. Vignetting is there, but according to the shots I have seen it is even considerably less than with the DA 55 f1.4. I bought a step-down-ring (52 to 49mm) and even with a mounted polarizer I couldn't discover additional vignetting/shading of any sort. So enjoy, the DA 50 f1.8 seems like a great deal!

phat_bog · 07-09-2016, 02:13 AM - **1 Like**

Originally posted by geedee

but according to the shots I have seen it is even considerably less than with the DA 55 f1.4.

have you tried the DA 55mm without the hood? with this hood taken from a 28-105mm the vignetting is minimal on the DA 55.

geedee · 07-09-2016, 12:14 PM

Originally posted by phat_bog

have you tried the DA 55mm without the hood? with this hood taken from a 28-105mm the vignetting is minimal on the DA 55.

No, I don't own the DA 55 f1.4. I just saw a thread about the DA 55 - which I can't find right now - with test images posted (without hood used). Vignetting seemed stronger to me than with the DA 50.

zestoi · 07-11-2016, 01:11 AM

my da50 seems to work fine on my k1 and my da35. pretty handy

**clackers** · 07-11-2016, 03:41 AM

My DA35, DA50, DA*55 and DA70 work just fine in FF mode.

bdery · 07-11-2016, 05:00 AM

DA 40 LTD too.

07-08-2016, 07:02 PM	#1
jhlxxx New Member Join Date: Jun 2015 Posts: 9	Pentax DA 50 F1.8 support full frame?? Guys, I hope I am wrong but also I hope I am right. I just tried my pentax da 50 f1.8 and manually set the k1 to full frame mode. I took some the photos, no dark side on the photos.....Then I set it to crop mode, everything is normal.. Does it mean this lens support full frame??!! Please test!!

07-08-2016, 07:05 PM - 1 Like	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	Originally posted by jhlxxx Guys, I hope I am wrong but also I hope I am right. I just tried my pentax da 50 f1.8 and manually set the k1 to full frame mode. I took some the photos, no dark side on the photos.....Then I set it to crop mode, everything is normal.. Does it mean this lens support full frame??!! Please test!! Yes, it does support FF with minimal vignetting. The K-1 does not have correction profiles for it in FF mode, however. 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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07-08-2016, 07:42 PM	#3
disasterfilm Site Supporter Join Date: Aug 2014 Location: Texas Posts: 406	Another thing to note is if you're using composition adjustment to shift the sensor, whichever direction you're shifting the frame will have more severe black corners where the image circle stops. You can crop these away such that the final image is far larger than the APS-C option, but you will not have a fully impeded frame.

07-09-2016, 01:31 AM - 1 Like	#4
geedee Senior Member Join Date: Jun 2012 Location: Freiburg im Breisgau, Germany Photos: Gallery \| Albums Posts: 114	Bought the DA 50 f1.8 recently. Vignetting is there, but according to the shots I have seen it is even considerably less than with the DA 55 f1.4. I bought a step-down-ring (52 to 49mm) and even with a mounted polarizer I couldn't discover additional vignetting/shading of any sort. So enjoy, the DA 50 f1.8 seems like a great deal!

07-09-2016, 12:14 PM	#6
geedee Senior Member Join Date: Jun 2012 Location: Freiburg im Breisgau, Germany Photos: Gallery \| Albums Posts: 114	Originally posted by phat_bog have you tried the DA 55mm without the hood? with this hood taken from a 28-105mm the vignetting is minimal on the DA 55. No, I don't own the DA 55 f1.4. I just saw a thread about the DA 55 - which I can't find right now - with test images posted (without hood used). Vignetting seemed stronger to me than with the DA 50.

07-11-2016, 01:11 AM	#7
zestoi Forum Member Join Date: Nov 2015 Location: British ExPat in Bucharest Posts: 86	my da50 seems to work fine on my k1 and my da35. pretty handy

07-11-2016, 03:41 AM	#8
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	My DA35, DA50, DA*55 and DA70 work just fine in FF mode.

07-11-2016, 05:00 AM	#9
bdery Pentaxian Join Date: Mar 2008 Location: Quebec city, Canada Photos: Gallery Posts: 9,362	DA 40 LTD too.

Pentax DA 50 F1.8 support full frame??

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