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08-30-2013, 08:57 AM   #1
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yet another Q surprise

I'd known for a while that my generic Q hood can take 52mm filters. While that's pretty cool, the resulting images did nothing in particular for me - so I didn't try all my filters at first.

Today I was shooting a closeup or two from my front porch, and remembered that I have a 52mm +1-diopter closeup filter. I popped it on and was quite surprised and happy with the results. Now the Q takes decent closeups with very blurry backgrounds, almost like a larger sensor would produce!



Just for laughs I sought out a near-infinity shot - and it focused just fine across the street at 15mm! Focus lag was no issue, and taking a shot with and without the +1 showed no strong degradation. Keep in mind that this is a $12-for-three closeup filter, not a high-quality Raynox or other big name. The shot below is at 15mm wide open, and also quite heavily cropped so quality is pretty low. This is with and without the +1, and results are mighty close. Shooting into light would likely be a problem since the filter is outside of the lens hood, but this implies that for a lot of shooting I'd be OK leaving the +1 in place.


Note that I didn't try my +2 or larger diopters, as the +1 results are sufficient for my needs; I could try them for laughs or by request.


08-30-2013, 09:33 AM   #2
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Did the focus motor sound like it was straining to move all that hardware?
08-30-2013, 01:44 PM   #3
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Most of the hardware you see is the silver plastic hood, so no struggles at all. It focused as well with the lens on as off, so that was a relief.

Maybe it's clearer this way: sturdy hood, +1 52mm filter, and a Q.

Last edited by jimr-pdx; 08-30-2013 at 04:47 PM.
08-30-2013, 09:20 PM   #4
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For the infinity shots I can see hardly any difference.

Can you show the with/without shots of closeup objects to see what the difference looks like?

I am intrigued about the benefits of this approach vs. an adapted k mount macro lens.

08-30-2013, 09:23 PM   #5
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Sure I'll play some more tomorrow maybe I'll even try the +2!
09-02-2013, 08:11 PM   #6
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+1 diopter on Q - update

So here are a couple of filter/no filter shots that show a bit more of the blur effect with the +1 filter attached. I couldn't find my +2 - but I did remember once to compare to the in-camera Blur-control function .

Here is a with/without set focused manually on the orb spider - you can see the background is less detailed with the filter (top image):


And this one is top to bottom with filter / no filter / no filter + BC setting:


The BC shot exposed a bit brighter so not a great comparison. I'd say the +1 screw-on is a bit smoother than BC as I see it. These are shrunk shots using Picasa collage, so it might be less clear for you here; I can post the full shots 'tomorrow' if anyone wishes. It should also be done in M mode with fixed ISO and a tripod, if your tester were more rigorous...
09-24-2013, 06:59 PM   #7
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A bad-news update - at 5mm the hood+filter combo vignettes the image badly, essentially cropping the corners. I did not determine at what FL this goes away, but it takes care of the always-on concept at least in this implementation.
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