Pentax Auto 110 Film camera lenses

singh2005 · 08-22-2018, 07:14 PM

Does anyone have any experience using these tiny cute looking lenses?

You Tube

If they are half as good as this guys describes, then I'd get them.

**boriscleto** · 08-22-2018, 07:50 PM

For what format? They almost cover an APS-C sensor, they do cover m4/3. But keep in mind they don't have any aperture blades, you can use Lensbaby aperture disks...

**UncleVanya** · 08-22-2018, 07:52 PM

I've seen people use them on m43. Be aware none have aperture control but you can insert a waterfall stop in the back of the lens with good results. Many use rubber washers.

Unregistered User · 08-22-2018, 07:53 PM

Check out the "Adapted lenses tested on the Q" for a ton of information, it is a sticky in the Q section.

I've got the four lenses he talks about and I use them often on my Q7. The nice part about using them on a Q is that you are only using the center part of the lens so you get excellent edge to edge sharpness, no vignetting and no distortion. They are as good as he says, and with a rubber washer put in the back of the adapter you can get an effective f4.5 stop, which is optimum for edge to edge sharpness on the Qs. I haven't used them on bigger sensor cameras.

I would rank them as #1 50mm, #2 18mm, #3 24mm and #4 70mm. The 70mm isn't as sharp as the others and suffers from some purple fringing.

Here is a shot taken with the 18mm:

[url=https://flic.kr/p/XEYWvz]

And one with the 50mm (cropped):

[url=https://flic.kr/p/WS9NAb]

They all benefit from a hood, especially the 24mm.

Here are some MTF tests on the three smaller lenses: http://erphotoreview.com/wordpress/?p=404&page=2

Note how the resolution increases as the lens is stopped down. Also note the distortion figure for the 50mm lens!

Last edited by Unregistered User; 08-22-2018 at 08:08 PM. Reason: more info

timw4mail · 08-22-2018, 08:00 PM

The 18, 24, and 50 primes are all fairly easy to get, and are easily adaptable for Micro 4/3s.

The 70mm, the zoom, and the pan-focus lenses are significantly more rare, and probably aren't worth the expense of adapting.

**UncleVanya** · 08-22-2018, 08:06 PM

Several sites actually suggest that the 70 is very sharp. Here is one:

The wonders with Pentax Auto 110 lenses | Photo.net Photography Forums

Also there is a Flickr group that specifically caters to these lenses on m43.

**PJ1** · 08-23-2018, 03:26 AM

I use them on the Q and Q7. I think the 50mm is better than the 70mm but I have not really got down to proper testing. I also have the Soligor 1.7x teleconverter which I have yet to test. If you think the lenses are tiny you should see the teleconverter!

**pentaxus** · 08-23-2018, 10:34 AM

From use on the 110 when 100 speed film could be purchased, my 50 was sharpest by far.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
For Sale - Sold: Pentax Auto 110 with 24mm, 50mm, and 70 mm lenses. Film tested	K David	Sold Items	11	09-02-2018 10:25 PM
Auto 110 with modern film?	leekil	Film SLRs and Compact Film Cameras	15	06-20-2018 08:36 PM
Something nice for our Pentax Auto 110 users: Auto 110 lens database	Adam	Film SLRs and Compact Film Cameras	3	09-24-2010 06:42 AM

08-22-2018, 07:50 PM	#2
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,475	For what format? They almost cover an APS-C sensor, they do cover m4/3. But keep in mind they don't have any aperture blades, you can use Lensbaby aperture disks...

08-22-2018, 07:52 PM	#3
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,403	I've seen people use them on m43. Be aware none have aperture control but you can insert a waterfall stop in the back of the lens with good results. Many use rubber washers.

08-22-2018, 07:53 PM	#4
Unregistered User Guest	Check out the "Adapted lenses tested on the Q" for a ton of information, it is a sticky in the Q section. I've got the four lenses he talks about and I use them often on my Q7. The nice part about using them on a Q is that you are only using the center part of the lens so you get excellent edge to edge sharpness, no vignetting and no distortion. They are as good as he says, and with a rubber washer put in the back of the adapter you can get an effective f4.5 stop, which is optimum for edge to edge sharpness on the Qs. I haven't used them on bigger sensor cameras. I would rank them as #1 50mm, #2 18mm, #3 24mm and #4 70mm. The 70mm isn't as sharp as the others and suffers from some purple fringing. Here is a shot taken with the 18mm: [url=https://flic.kr/p/XEYWvz] And one with the 50mm (cropped): [url=https://flic.kr/p/WS9NAb] They all benefit from a hood, especially the 24mm. Here are some MTF tests on the three smaller lenses: http://erphotoreview.com/wordpress/?p=404&page=2 Note how the resolution increases as the lens is stopped down. Also note the distortion figure for the 50mm lens! Last edited by Unregistered User; 08-22-2018 at 08:08 PM. Reason: more info

08-22-2018, 08:00 PM	#5
timw4mail Pentaxian Join Date: Apr 2017 Location: Driving a Mirage Photos: Gallery \| Albums Posts: 1,670	The 18, 24, and 50 primes are all fairly easy to get, and are easily adaptable for Micro 4/3s. The 70mm, the zoom, and the pan-focus lenses are significantly more rare, and probably aren't worth the expense of adapting.

08-22-2018, 08:06 PM	#6
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,403	Several sites actually suggest that the 70 is very sharp. Here is one: The wonders with Pentax Auto 110 lenses \| Photo.net Photography Forums Also there is a Flickr group that specifically caters to these lenses on m43.

08-23-2018, 03:26 AM	#7
PJ1 Loyal Site Supporter Join Date: Jul 2012 Location: Toowoomba, Australia Photos: Gallery \| Albums Posts: 5,484	I use them on the Q and Q7. I think the 50mm is better than the 70mm but I have not really got down to proper testing. I also have the Soligor 1.7x teleconverter which I have yet to test. If you think the lenses are tiny you should see the teleconverter!

08-23-2018, 10:34 AM	#8
pentaxus Site Supporter Join Date: Jun 2010 Location: Central Coast, CA Posts: 1,313	From use on the 110 when 100 speed film could be purchased, my 50 was sharpest by far.