[Docrwm]

I've had my K-1 about 12 hours now. Yes, the image quality is stunning - no doubt. All the big things are there - IQ, better AF, WiFi, built in Astrotracer, etc. But sometimes its the little things that make something great.

For me there are two little things that I really appreciate about the K-1 over the K-3 and earlier models. The Diopter Adjustment goes to -3.5 instead of -2.5, which means I don't have to worry about loosing that small (and extremely hard to come by) diopter attachment for the viewfinder because it suits me perfectly. That, in turn, means that for the first time in a LONG time I can enjoy having a soft eye-cup to place my face against instead of hard plastic! Those may seem small to you but to me they make this camera just that much better.

[Paul the Sunman]

Little things indeed. Who would have thought of that?

[normhead]

Little things indeed. Who would have thought of that?

Someone who needs a 3.5 diopter?

I need 2.5 so my K-3 is at the end of it's adjustment, but at the end is good enough.

But little things like that are certainly important.

[aslyfox]

truly, it may be the littlest thing that makes one happy

honey I just want to buy a new camera because of the 1.0 difference in diopter adjustment

___________________________

" How to Convert Diopters to 20/20 Scale?

Now you have understood what 20/20 vision means, it does not translate to the prescription that your optometrist will pass to you for your glasses.
While the 20/20 vision system measures how well you can see compared to a healthy benchmark, diopters measure the focusing power of your glasses.
The prescription is measured in diopters, the refractive power of your new glasses or contacts.

You will get a separate diopter value for each eye. If the measurement has a minus (-) before it, you are myopic and if there is a plus (+) before it, you are hyperopic.

There is a relationship between the two, shown in the table below.

20/20 Measure In Feet 20/20 Measure in Metres Estimated Refractive Errors in Diopters
20/20 6/6 0
20/30 6/9 -0.50
20/40 6/12 -0.75
20/50 6/15 -1.00
20/70 6/20 -1.25
20/100 6/30 -1.50
20/150 6/45 -2.00
20/200 6/60 -2.50 ---- K 3 max
20/250 6/75 -3.00
20/300 6/90 -3.50 ------- K 1 max
Diopter Conversion Chart
The right-hand column is given approximately as there is not a rigidly fixed relationship between refractive error and visual acuity.

Two people who have the same refractive error and need the same prescription may have widely different degrees of success in reading a distant wall chart with their glasses removed.

It is included here merely for information purposes. "

What Is 20/20 Vision? How Convert Diopters To 20/20 Scales

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Last edited by aslyfox; 03-19-2019 at 06:27 AM.

[gaweidert]

I also like the Pentax O-ME53 magnifying eyecup when using manual focus. I just leave them on my K1 and K1-II.

[Docrwm]

I also like the Pentax O-ME53 magnifying eyecup when using manual focus. I just leave them on my K1 and K1-II.

Wow, I've never been able to use one because I had to have the Diopter adjustment in place and both won't work. I can also, finally, try the O-ME53 on the K-1!

[zzeitg]

Wow, I've never been able to use one because I had to have the Diopter adjustment in place and both won't work. I can also, finally, try the O-ME53 on the K-1!

I think that you'll find out that using O-ME53 on the K-1 leads to reduction of the OVF "window" size.

[kiwi_jono]

Can't disagree. Love the way the K-1 feels in my hand too as it fits my hand so much better than my K-5!

For me its great having a level that is actually level too (my K-5 was out a bit, which is apparently quite common, but the K-1 is spot on!) - use this all the time.

[Docrwm]

I think that you'll find out that using O-ME53 on the K-1 leads to reduction of the OVF "window" size.

Thanks, and perhaps you are right, but I do like that I now have the option to try it.