Old lens compatibility

jay legere · 02-07-2008, 01:43 PM

I have some old lenses. They are not Pentax lenses, but they work with my Program A, and my ist dl. However, they don't seem to operate with my new k10d. I just get F-- flashing in the viewfinder. Is this the end of some of my non-pentax brand lenses?

ftpaddict · 02-07-2008, 01:56 PM

any information on brand/mount?

Gooshin · 02-07-2008, 01:56 PM

Originally posted by jay legere

I have some old lenses. They are not Pentax lenses, but they work with my Program A, and my ist dl. However, they don't seem to operate with my new k10d. I just get F-- flashing in the viewfinder. Is this the end of some of my non-pentax brand lenses?

do they have the letter "A" on the aperture ring?

if yes, you have to put it in "A" when you attach it to the camera.

if they lack that, then its a fully manual lens, then you have to go into the camera menu system and disable the lock for non "A" lenses, then shoot in "M" mode only.

bc_the_path · 02-07-2008, 01:57 PM

Does not sound right. You should be able to use them, I think. Did you allow the usage of old lenses using the menu selections? (Don't remember the specific menu item).

jay legere · 02-07-2008, 02:08 PM

Originally posted by Gooshin

do they have the letter "A" on the aperture ring?

if yes, you have to put it in "A" when you attach it to the camera.

if they lack that, then its a fully manual lens, then you have to go into the camera menu system and disable the lock for non "A" lenses, then shoot in "M" mode only.

Do I have to lock it again in order to use my regular lenses, or can I leave it one I have disabled the lock?

Gooshin · 02-07-2008, 02:10 PM

Originally posted by jay legere

Do I have to lock it again in order to use my regular lenses, or can I leave it one I have disabled the lock?

no you dont have to lock it

i dont know why they put that option there in the first place

Gooshin · 02-07-2008, 02:12 PM

my K100D has it like this:

menu --> custom settings --> "using aperture ring" ---> 1. prohibited 2.permited

"pictures can be taken even when aperture ring position is other than A"

again, i have no idea why they would even bother with such a choice.

jay legere · 02-07-2008, 10:05 PM

Thanks guys for all the help.

I see that there are some limitations with the old lenses, but they are sweet to play with.

My favourite oldie is a Ricoh 50mm 2.0 Feels so nice to manipulate the focus ring!

Glen_S · 02-07-2008, 10:30 PM

I just opened my new K10D tonight and put my 28-80 lense off of my MZ7 Pentax, and had the same thing, the F-- flashing , and I could not figure out why until I realized the aperture ring had to be set on A, as mentioned by Gooshin. I didnt get far enough into the manual to find out about the lock for non "A" lenses. Anyway, once I switched the ring to "A" all was fine.

What is that lock all about anyway?

Stratman · 02-07-2008, 10:38 PM

When it is locked on "A" the camera can control the aperture, either automatically, or with one of the eDials. But if you want to use the aperture ring you have to set "using aperture ring" to permitted in the custom menu. And you can just leave it set that way, no need to change it back.

WendyB · 02-07-2008, 10:38 PM

Originally posted by Gooshin

do they have the letter "A" on the aperture ring?

if yes, you have to put it in "A" when you attach it to the camera.

if they lack that, then its a fully manual lens, then you have to go into the camera menu system and disable the lock for non "A" lenses, then shoot in "M" mode only.

Very well said

WendyB · 02-07-2008, 10:53 PM

Originally posted by jay legere

Thanks guys for all the help.

I see that there are some limitations with the old lenses, but they are sweet to play with.

My favourite oldie is a Ricoh 50mm 2.0 Feels so nice to manipulate the focus ring!

Jay, there are "some" limitations with the old lenses but keep in mind, there are limitless wonderful possibilities.

Just ask anyone in this forum and they will provide their limitless experience.

If you do not know how and do not ask how then you will not learn how.

Welcome to the "University of Pentax" which includes the best professors of Pentax on this planet earth and of this universe.

Please do not visit Venus. The Pentax professors are vain and arrogant there. The holdouts on Mars are coming around though.

little laker · 02-08-2008, 12:22 AM

Just a warning that if you use the lens on with the camera on anything other than Manual the F-stop will always be held wide open by the aperture leaver.

02-07-2008, 01:43 PM	#1
jay legere New Member Join Date: Jan 2008 Location: !qaluit, Canada Posts: 19	Old lens compatibility I have some old lenses. They are not Pentax lenses, but they work with my Program A, and my ist dl. However, they don't seem to operate with my new k10d. I just get F-- flashing in the viewfinder. Is this the end of some of my non-pentax brand lenses?

02-07-2008, 10:05 PM	#8
jay legere New Member Join Date: Jan 2008 Location: !qaluit, Canada Posts: 19 Original Poster	problem solved Thanks guys for all the help. I see that there are some limitations with the old lenses, but they are sweet to play with. My favourite oldie is a Ricoh 50mm 2.0 Feels so nice to manipulate the focus ring!

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02-07-2008, 01:56 PM	#2
ftpaddict Veteran Member Join Date: Jan 2008 Location: Yurp Photos: Gallery Posts: 4,666	any information on brand/mount?

02-07-2008, 01:56 PM	#3
Gooshin Veteran Member Join Date: Sep 2007 Location: Toronto, the one in Canada. Posts: 5,610	Originally posted by jay legere I have some old lenses. They are not Pentax lenses, but they work with my Program A, and my ist dl. However, they don't seem to operate with my new k10d. I just get F-- flashing in the viewfinder. Is this the end of some of my non-pentax brand lenses? do they have the letter "A" on the aperture ring? if yes, you have to put it in "A" when you attach it to the camera. if they lack that, then its a fully manual lens, then you have to go into the camera menu system and disable the lock for non "A" lenses, then shoot in "M" mode only.

02-07-2008, 01:57 PM	#4
bc_the_path Veteran Member Join Date: Mar 2007 Location: Ankara, Turkey Photos: Gallery Posts: 401	Does not sound right. You should be able to use them, I think. Did you allow the usage of old lenses using the menu selections? (Don't remember the specific menu item).

02-07-2008, 02:08 PM	#5
jay legere New Member Join Date: Jan 2008 Location: !qaluit, Canada Posts: 19 Original Poster	Originally posted by Gooshin do they have the letter "A" on the aperture ring? if yes, you have to put it in "A" when you attach it to the camera. if they lack that, then its a fully manual lens, then you have to go into the camera menu system and disable the lock for non "A" lenses, then shoot in "M" mode only. Do I have to lock it again in order to use my regular lenses, or can I leave it one I have disabled the lock?

02-07-2008, 02:10 PM	#6
Gooshin Veteran Member Join Date: Sep 2007 Location: Toronto, the one in Canada. Posts: 5,610	Originally posted by jay legere Do I have to lock it again in order to use my regular lenses, or can I leave it one I have disabled the lock? no you dont have to lock it i dont know why they put that option there in the first place

02-07-2008, 02:12 PM	#7
Gooshin Veteran Member Join Date: Sep 2007 Location: Toronto, the one in Canada. Posts: 5,610	my K100D has it like this: menu --> custom settings --> "using aperture ring" ---> 1. prohibited 2.permited "pictures can be taken even when aperture ring position is other than A" again, i have no idea why they would even bother with such a choice.

02-07-2008, 10:30 PM	#9
Glen_S Senior Member Join Date: Feb 2008 Location: Alberta, Canada Photos: Gallery Posts: 105	I just opened my new K10D tonight and put my 28-80 lense off of my MZ7 Pentax, and had the same thing, the F-- flashing , and I could not figure out why until I realized the aperture ring had to be set on A, as mentioned by Gooshin. I didnt get far enough into the manual to find out about the lock for non "A" lenses. Anyway, once I switched the ring to "A" all was fine. What is that lock all about anyway?

02-07-2008, 10:38 PM	#10
Stratman Veteran Member Join Date: Mar 2007 Location: St Louis, Missouri U S A Photos: Gallery \| Albums Posts: 2,464	When it is locked on "A" the camera can control the aperture, either automatically, or with one of the eDials. But if you want to use the aperture ring you have to set "using aperture ring" to permitted in the custom menu. And you can just leave it set that way, no need to change it back.

02-07-2008, 10:38 PM	#11
WendyB Inactive Account Join Date: Nov 2007 Location: Grosse Pointe Farms, Michigan Posts: 189	Originally posted by Gooshin do they have the letter "A" on the aperture ring? if yes, you have to put it in "A" when you attach it to the camera. if they lack that, then its a fully manual lens, then you have to go into the camera menu system and disable the lock for non "A" lenses, then shoot in "M" mode only. Very well said

02-07-2008, 10:53 PM	#12
WendyB Inactive Account Join Date: Nov 2007 Location: Grosse Pointe Farms, Michigan Posts: 189	Originally posted by jay legere Thanks guys for all the help. I see that there are some limitations with the old lenses, but they are sweet to play with. My favourite oldie is a Ricoh 50mm 2.0 Feels so nice to manipulate the focus ring! Jay, there are "some" limitations with the old lenses but keep in mind, there are limitless wonderful possibilities. Just ask anyone in this forum and they will provide their limitless experience. If you do not know how and do not ask how then you will not learn how. Welcome to the "University of Pentax" which includes the best professors of Pentax on this planet earth and of this universe. Please do not visit Venus. The Pentax professors are vain and arrogant there. The holdouts on Mars are coming around though.

02-08-2008, 12:22 AM	#13
little laker Veteran Member Join Date: Sep 2006 Photos: Gallery Posts: 5,697	Just a warning that if you use the lens on with the camera on anything other than Manual the F-stop will always be held wide open by the aperture leaver.