Win a Pentax Limited Lens: Raffle Now Live!

canajuneh · 10-30-2011, 09:56 AM

A couple of nights ago hubby and I shot off to try to get some northern lights photos. This was my second chance to try this. Hubby and I share our selection of lenses and it was his turn to use the wide angle. I had the Pentax 18-135 on my camera.

I wanted to set my lens on infinity - but couldn't see a way to do that in the cold and dark. I've just checked again and still don't see a way to do it. Any ideas guys?

Wheatfield · 10-30-2011, 09:59 AM

One end of the focus is close, the other is far. I believe with Pentax lenses, turning the focus ring all the way to the right is infinity.

canajuneh · 10-30-2011, 11:16 AM

That does sound logical doesn't it....it was what I tried when no infinity symbol could be found The problem is that focus ring turns and turns and turns with no 'end' in sight!

Wheatfield · 10-30-2011, 11:51 AM

Originally posted by canajuneh

That does sound logical doesn't it....it was what I tried when no infinity symbol could be found The problem is that focus ring turns and turns and turns with no 'end' in sight!

Ah yes, I forgot that you would be dealing with quick shift.
I think if you switch to manual focus you will feel a slight resistance when you hit infinity (or close focus the other way).
If not, turning the focus ring to the right more than is known to put the lens to infinity will put the lens on infinity.

sterretje · 10-31-2011, 12:43 AM

Originally posted by canajuneh

That does sound logical doesn't it....it was what I tried when no infinity symbol could be found The problem is that focus ring turns and turns and turns with no 'end' in sight!

If that means that you can turn the focus ring more than 360 degrees, I would say that the lens is broken.

kh1234567890 · 11-02-2011, 02:20 AM

Originally posted by sterretje

If that means that you can turn the focus ring more than 360 degrees, I would say that the lens is broken.

It is meant to do that - a 'feature' of the 18-135. You can just about feel the 'soft stops' but they may not correspond to infinity.

sterretje · 11-02-2011, 04:33 AM

Thanks, learned something again.

10-30-2011, 09:56 AM	#1
canajuneh Senior Member Join Date: Jan 2011 Location: Saskatchewan Posts: 221	no infinity sign on lens?? A couple of nights ago hubby and I shot off to try to get some northern lights photos. This was my second chance to try this. Hubby and I share our selection of lenses and it was his turn to use the wide angle. I had the Pentax 18-135 on my camera. I wanted to set my lens on infinity - but couldn't see a way to do that in the cold and dark. I've just checked again and still don't see a way to do it. Any ideas guys?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Show me a Sign! Billboards,sign,bus ads,shop signs go here!	bbluesman	Mini-Challenges, Games, and Photo Stories	6913	3 Days Ago 06:15 AM
M42 lens focussing problems in infinity	skien68	Troubleshooting and Beginner Help	7	05-11-2011 05:36 PM
Why don't all lenses have infinity exactly on the infinity stop?	peterh337	Pentax SLR Lens Discussion	19	01-15-2011 08:53 PM
Having no infinity focus on manual lens?	clockwork247	Troubleshooting and Beginner Help	17	12-23-2010 04:22 PM
M42 lens trap, focus infinity?	kiwao	Pentax SLR Lens Discussion	5	03-11-2010 02:56 AM

10-30-2011, 09:59 AM	#2
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,991	One end of the focus is close, the other is far. I believe with Pentax lenses, turning the focus ring all the way to the right is infinity.

10-30-2011, 11:16 AM	#3
canajuneh Senior Member Join Date: Jan 2011 Location: Saskatchewan Posts: 221 Original Poster	That does sound logical doesn't it....it was what I tried when no infinity symbol could be found The problem is that focus ring turns and turns and turns with no 'end' in sight!

10-30-2011, 11:51 AM	#4
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,991	Originally posted by canajuneh That does sound logical doesn't it....it was what I tried when no infinity symbol could be found The problem is that focus ring turns and turns and turns with no 'end' in sight! Ah yes, I forgot that you would be dealing with quick shift. I think if you switch to manual focus you will feel a slight resistance when you hit infinity (or close focus the other way). If not, turning the focus ring to the right more than is known to put the lens to infinity will put the lens on infinity.

10-31-2011, 12:43 AM	#5
sterretje Veteran Member Join Date: Dec 2008 Location: Roodepoort, South Africa Photos: Gallery \| Albums Posts: 3,561	Originally posted by canajuneh That does sound logical doesn't it....it was what I tried when no infinity symbol could be found The problem is that focus ring turns and turns and turns with no 'end' in sight! If that means that you can turn the focus ring more than 360 degrees, I would say that the lens is broken.

11-02-2011, 02:20 AM	#6
kh1234567890 Veteran Member Join Date: Sep 2010 Location: Manchester, UK Photos: Gallery Posts: 2,653	Originally posted by sterretje If that means that you can turn the focus ring more than 360 degrees, I would say that the lens is broken. It is meant to do that - a 'feature' of the 18-135. You can just about feel the 'soft stops' but they may not correspond to infinity.

11-02-2011, 04:33 AM	#7
sterretje Veteran Member Join Date: Dec 2008 Location: Roodepoort, South Africa Photos: Gallery \| Albums Posts: 3,561	Thanks, learned something again.

no infinity sign on lens??

Win a Pentax Limited Lens: Raffle Now Live!