Pentax P30n diopter

mlines · 01-23-2023, 07:32 AM

When I was younger my first Pentax camera was a P30n.

In a fit of nostalgia I saw one in a charity shop and purchased it.

I forgot that over 30 years have passed and my eyesight has aged.

The camera has no diopter adjustment and I cannot focus it!

I can see some diopter offerings such as "Pentax M" ???

What should I be looking for (i know the actual dipoter is dependent on my prescription)

Martin

pschlute · 01-23-2023, 07:53 AM

Originally posted by mlines

I can see some diopter offerings such as "Pentax M" ???

That is the one.

If it helps here is a link to the camera manual (password is Pentax) ....... https://www.pentax-manuals.com/manuals/mf/pentax_p30_manual_s.pdf

mlines · 01-23-2023, 07:57 AM

Great - thanks

**Dimeman** · 01-23-2023, 10:46 AM

They are still available as I bought a few different ones from an ebay seller. They even fit on my K-S2 with the diopter adjuster on it, when you take off the rubber piece covering it.
My eyesight is -2.75 so a -2 with a little adjustment makes it perfect.

mlines · 01-24-2023, 04:21 AM

Originally posted by Dimeman

They are still available as I bought a few different ones from an ebay seller. They even fit on my K-S2 with the diopter adjuster on it, when you take off the rubber piece covering it.
My eyesight is -2.75 so a -2 with a little adjustment makes it perfect.

Thanks, how does "adjustment" work - I am +1.5 in my viewing eye and they appear to do +1 and +2 corrections. Would I be able to go +1 and adjust "up" or +2 and adjust down?

**Dimeman** · 01-24-2023, 06:42 PM

Originally posted by mlines

Thanks, how does "adjustment" work - I am +1.5 in my viewing eye and they appear to do +1 and +2 corrections. Would I be able to go +1 and adjust "up" or +2 and adjust down?

If your camera doesn't have the slide adjuster on top of the viewfinder--you could get the +2, take off the rubber eyepiece and slide the adapter on.

Many Pentax DSLRs have a slide diopter adjustment on top of the viewfinder, that can slide left or right for adjustment.
If your camera has the slide adjustment you won't need the corrective diopter.

I have a -2 on my K-S2 (with a slide dioptor adjustment) that I bought when I had a P3N that had no slide adjustment, I tried a -3 and -2 and the -2 was sharper in the viewfinder.

01-23-2023, 07:32 AM	#1
mlines Forum Member Join Date: May 2018 Location: Berkshire Posts: 90	Pentax P30n diopter When I was younger my first Pentax camera was a P30n. In a fit of nostalgia I saw one in a charity shop and purchased it. I forgot that over 30 years have passed and my eyesight has aged. The camera has no diopter adjustment and I cannot focus it! I can see some diopter offerings such as "Pentax M" ??? What should I be looking for (i know the actual dipoter is dependent on my prescription) Martin

01-24-2023, 06:42 PM	#6
Dimeman Site Supporter Join Date: Jan 2010 Location: Houston, TX Photos: Gallery Posts: 60	Originally posted by mlines Thanks, how does "adjustment" work - I am +1.5 in my viewing eye and they appear to do +1 and +2 corrections. Would I be able to go +1 and adjust "up" or +2 and adjust down? If your camera doesn't have the slide adjuster on top of the viewfinder--you could get the +2, take off the rubber eyepiece and slide the adapter on. Many Pentax DSLRs have a slide diopter adjustment on top of the viewfinder, that can slide left or right for adjustment. If your camera has the slide adjustment you won't need the corrective diopter. I have a -2 on my K-S2 (with a slide dioptor adjustment) that I bought when I had a P3N that had no slide adjustment, I tried a -3 and -2 and the -2 was sharper in the viewfinder. Last edited by Dimeman; 01-24-2023 at 06:52 PM.

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01-23-2023, 07:53 AM	#2
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,198	Originally posted by mlines I can see some diopter offerings such as "Pentax M" ??? That is the one. If it helps here is a link to the camera manual (password is Pentax) ....... https://www.pentax-manuals.com/manuals/mf/pentax_p30_manual_s.pdf

01-23-2023, 07:57 AM	#3
mlines Forum Member Join Date: May 2018 Location: Berkshire Posts: 90 Original Poster	Great - thanks

01-23-2023, 10:46 AM	#4
Dimeman Site Supporter Join Date: Jan 2010 Location: Houston, TX Photos: Gallery Posts: 60	They are still available as I bought a few different ones from an ebay seller. They even fit on my K-S2 with the diopter adjuster on it, when you take off the rubber piece covering it. My eyesight is -2.75 so a -2 with a little adjustment makes it perfect.

01-24-2023, 04:21 AM	#5
mlines Forum Member Join Date: May 2018 Location: Berkshire Posts: 90 Original Poster	Originally posted by Dimeman They are still available as I bought a few different ones from an ebay seller. They even fit on my K-S2 with the diopter adjuster on it, when you take off the rubber piece covering it. My eyesight is -2.75 so a -2 with a little adjustment makes it perfect. Thanks, how does "adjustment" work - I am +1.5 in my viewing eye and they appear to do +1 and +2 corrections. Would I be able to go +1 and adjust "up" or +2 and adjust down?