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02-01-2014, 08:58 PM   #1
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Pentax Q questions

Hi I want to get a pentax Q but I have a few questions I hope someone can enlighten me. Thank you!

1) Is there any big difference between the original Q and the Q10? I only know that the Q7 has 3D features and more, right?
2) Is there a lot of live view lag in the Q/Q10?
3) Will I able to autofocus using an adapter with my K-mount lenses.
4) What is the crop factor of the Q?

02-01-2014, 09:08 PM   #2
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The original Q and Q10 have crop factors of 5.6.

I don't think the auto focus works on adapted K lenses, but I won't swear to that.
02-01-2014, 09:28 PM - 1 Like   #3
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QuoteOriginally posted by alwaysjerricky Quote
Hi I want to get a pentax Q but I have a few questions I hope someone can enlighten me. Thank you!

1) Is there any big difference between the original Q and the Q10? I only know that the Q7 has 3D features and more, right?
2) Is there a lot of live view lag in the Q/Q10?
3) Will I able to autofocus using an adapter with my K-mount lenses.
4) What is the crop factor of the Q?
I had a Q but I don't now, but I can answer a little. The Q and Q10 have the same sensor but the Q7 has a larger sensor. I did not notice any live view lag in the Q, but I was not using it for fast action shooting. You will not be able to autofocus K-mount lenses with the adapter.

Ultimately I sold my Q because I would end up taking two cameras everywhere and it got cumbersome. It did not have as good as IQ as my K-30, but for such a tiny sensor it was very good. What I really liked about it was the fact I could actually stick it in my pocket and go on a bike ride or just about anywhere with it and remain inconspicuous. It was nice to that the controls and menus were set up just like Pentax DSLRs. And of course it just had such a solid feel, and it was good looking!
02-01-2014, 09:59 PM - 1 Like   #4
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QuoteOriginally posted by alwaysjerricky Quote
Hi I want to get a pentax Q but I have a few questions I hope someone can enlighten me. Thank you!

1) Is there any big difference between the original Q and the Q10? I only know that the Q7 has 3D features and more, right?
2) Is there a lot of live view lag in the Q/Q10?
3) Will I able to autofocus using an adapter with my K-mount lenses.
4) What is the crop factor of the Q?
1) From what I understand the biggest changes from the Q to the Q10 were cosmetic and improved response time performance. IQ and sensor performance was about the same. I may be wrong. Please correct me if I am wrong.

2) I do not notice any serious lag in my Q.

3) From what I understand, the answer is no. Focus peaking is your friend here.

4) 5.6



02-02-2014, 07:50 AM   #5
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Thank you guys! So am I right to say that there is almost no way of controlling the aperture and AF if I use my 18135 on the Q?
02-02-2014, 08:50 AM   #6
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QuoteOriginally posted by alwaysjerricky Quote
Thank you guys! So am I right to say that there is almost no way of controlling the aperture and AF if I use my 18135 on the Q?

The genuine Pentax adapter has a smooth (click-less) aperture adjustment. It's controlled with a ring that is marked 1 through 8. The numbers are relative vs. an actual focal length ratio.

The 18-135mm has a narrow focus ring near the mounting surface.

It all ought to work together well enough.
02-02-2014, 09:07 AM - 2 Likes   #7
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QuoteOriginally posted by alwaysjerricky Quote
Hi I want to get a pentax Q but I have a few questions I hope someone can enlighten me. Thank you!

1) Is there any big difference between the original Q and the Q10? I only know that the Q7 has 3D features and more, right?
2) Is there a lot of live view lag in the Q/Q10?
3) Will I able to autofocus using an adapter with my K-mount lenses.
4) What is the crop factor of the Q?
1) there is no functional difference between Q and Q10. The Q7 is a faster camera with a different sensor.
There is no 3D features.

2) there is a little lag but not too bad. There are some YouTube videos that show the lag when shooting video.

3) no adapter supports auto focus. All adapted lenses are manual focus only

4) crop factor is 5.6

For your 18-135 you will need an adapter that has aperture control. You will have to focus the lens manually.
02-03-2014, 05:43 AM   #8
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crewl1 nailed it. I might add that I would personally prefer the original Q over the Q10 just for the magnesium alloy body. The Q10 has a plastic body. Nothing wrong with it, I just prefer the feel of the original Q's metal body.

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