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06-11-2013, 11:55 AM   #1
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fotodiox adapter

Hi guys I saw this adapter at amazon Amazon.com: Fotodiox Lens Mount Adapter with Aperture Dial, Pentax K/PK Lens to Pentax Q-Series Camera, fits Pentax Q Mirrorless Cameras: Camera & Photo


what type of lens would be recommended for trying it with? I don't want anything huge but when I was browsing today and saw the adapter I wondered about it.

Nothing expensive.

06-11-2013, 12:34 PM   #2
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Hi backdrop001,

All K mount lenses become very interesting adapted to the Q though long tele lenses are usually given a lot of attention because of the extreme FL Equivalents that are possible. A 50mm f1.4 is the FL equivalent of a 280mm f1.4 on 35mm or about a 180mm f1.4 on an APS-C DSLR. Even the "slow" and very inexpensive M and A 50mm f2s make for very fast long teles on the Q. This makes for some interesting possibilities as the Q can get some perspectives in pretty low available light that you'd otherwise need some expensive (and physically large and heavy) glass to capture with even a good high ISO DSLR like a K-5. Of course, at the extreme tele end, there's nothing that can rival the Q for telephoto reach. Personally, I've found that even consumer grade tele zooms can give very good results, and despite what many have theorized about slow apertures and diffraction, f5.6 or even in some cases, f8 is not too small an aperture to get good results -- of course it depends on the lens. . .

Most Qusers have found that the less expensive adapters give better results if you paint the inside of the adapter with a good flat black paint or find another method to cut the reflectivity of the inside surfaces as the semi shiny anodized finish tends to add flare which shows up as loss of contrast, or at worst a milky haze, especially at wider apertures.

I think it's safe to say that trying adapted lenses with the Q is about as much fun as it gets for adventurous photographers who want to push their photographic horizons as far as they can without breaking the bank (and their backs).

Take a look at the sticky thread at the top of the page to get some idea of what people have been doing with adapted lenses on the Q:

https://www.pentaxforums.com/forums/pentax-q/209474-adapted-lenses-tested-q-r...ce-thread.html

Scott
06-11-2013, 01:27 PM   #3
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I like the M135/3.5 on the Q. Makes for a very long telephoto that does ok in low light. Nice for soccer. And a great way to get around those bizarre length of lens rules at most stadiums too The M80-200 is a bit hard to use but allows more flexibility. But my all time favorite at this point is my Vivitar 85/1.4 - great low light performance and an equivalent focal length of 465mm or so.
06-11-2013, 02:26 PM   #4
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great thank which one do you think is the most inexpensive? but not too bad on quality?


i'll look through that list i'm a novice so well we won't go there lol.

06-11-2013, 03:10 PM   #5
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QuoteOriginally posted by backdrop001 Quote
great thank which one do you think is the most inexpensive? but not too bad on quality?
I'd pick up a cheap 50mm (the f2 can be had for $30 or less, the f1.7 for probably $40) and the Pentax 135mm f3.5 Docrwm mentioned. If you're a bit patient, you can find a 135 for $30-$45. The 50 will be the equivalent of a 280mm on the Q, and the 135 will be the equivalent of a monster 756mm on the Q! And it's tiny, to boot. You'll want to stop it down a bit to get the best performance with it.

I've had good luck with both and the Fotodiox adapter on the Q. You probably won't want to use much longer than the 135 on there without a tripod, as handholding the camera steady will be trickier at longer focal lengths.

Good luck,
Bob :-)
06-11-2013, 04:07 PM   #6
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QuoteOriginally posted by GibbyTheMole Quote
I'd pick up a cheap 50mm (the f2 can be had for $30 or less, the f1.7 for probably $40) and the Pentax 135mm f3.5 Docrwm mentioned. If you're a bit patient, you can find a 135 for $30-$45. The 50 will be the equivalent of a 280mm on the Q, and the 135 will be the equivalent of a monster 756mm on the Q! And it's tiny, to boot. You'll want to stop it down a bit to get the best performance with it.

I've had good luck with both and the Fotodiox adapter on the Q. You probably won't want to use much longer than the 135 on there without a tripod, as handholding the camera steady will be trickier at longer focal lengths.

Good luck,
Bob :-)
The 135/3.5 isn't expensive and its a VERY compact lens with a built in hood. I had a great time with mine at the Zoo a while back. Even the M28/2.8 was a blast. On that trip I took one zoom (45-125) but mostly used the old Standard Trio that came with SLRs back in the day - the 28/2.8, 50/2, and 135/3.5 which gave me equivalents of 154, 275, and 743mm with nice light gathering ability. THe 28/2.8 sells for a bit more than the other two but still all three are pretty cheap and the M models are built well, handle well, and have descent coatings.
06-11-2013, 04:15 PM   #7
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The M 135/3.5 lives on my Fotodiox adapter, or vice versa.
06-11-2013, 05:42 PM   #8
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I agree the SMC M 135 f3.5 also lives on my Q, great little lens and can be had for under $50 on Ebay if you do a little looking.

Hans

06-11-2013, 07:43 PM   #9
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Also looking at getting some cheap, easy to use, adapted lenses for a noob.

Is there anything that you would recommend for macro photography?
06-12-2013, 05:46 AM   #10
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For Macro you can start with a 50mm most can focus to about 18" or 45cm that with a 275 mm focal length and to get really close you can put on some extension tubes. I got a poor quality cheap old K mount 2X converter from Ebay for about $5 and removed the lens to make a extension tube. Total lens cost about $30 with converter

Hans
06-12-2013, 06:12 AM   #11
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Hey guys I found this lens on amazon would it work with the adapter I mentioned Amazon.com: 70-300 mm DI f/4-5.6 Digital Series AF Zoom Lens for Canon EF: Camera & Photo

sorry if its a dumb question still trying to figure out how to tell which lens will work with that adapter.
06-12-2013, 06:17 AM   #12
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The adapter you linked is a Pentax K mount type but this lens appears to be a Canon EF mount type.
They will not work together.
For the adapter you indicated you have to search Pentax K mount lenses.
They can be from other manufacturers but must have a Pentax K style mount.
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