Do you mean it has Pentax quick shift focusing?

My first true macro lens was the Tamron SP 90 F2.5 Adaptall lens which I bought new from SRS in the 80's and only just traded in a at SRS a few years ago, where they spotted it still had their SRS sticker and price on the box. I've had a lot of experience with manual focus over the years, I'm AF or now't these days....

Hi, I currently use an Olympus M4/3 OM-D E-M10 mkii with an olympus 60mm 2.8 macro lens for my shorter reach macros. For more distant stuff I've been using a sigma 180 F3.5 Macro on a K3, but I've added a Pentax KP recently and have started using my FA 100 F3.5 macro for the shorter stuff again (because of the flip screen on the KP) and been enjoying it. However the FA 100 is only 1/2 life size magnification, no focus limiter and no easy way to override af without switching off/on at the body. Both my Sigma and Olympus have focus limiters which I use quite a bit especially on the 60, plus the 60 has continuous manual focus override by just turning the focus ring. So I started looking at the Tamron and Pentax currently available macros. However neither quite fit my requirements. The Pentax has no limiter but has the ability to spin the focus back to min if it starts hunting without having to disengage the af clutch or flip any switches. The Tamron has a focus limiter but you have to disengage the af clutch (much like my Pentax FA*300 F4.5) to manually adjust the focus.
So I was looking for opinions on these 2 preferably from people who have used them. I thought I would never go back to extending macro lenses again having enjoyed the Sigma 180 and the Olympus 60 but I don't have that option for Pentax in the shorter range, do I?
I use AF all the time for my macros, having in the past relied on manual focus I find my hit rate with live view so much better with AF so I'm not looking for a manual focus lens.
I see from reviews that the pentax always spins the manual focus ring even during af, anyone found this a problem? (I sometimes use a flash diffuser that attaches to the lens body which can be a problem with my FA 100 where the focus ring always turns, thus spinning the diffuser unless I fix it away from the focus ring). I tend to hold the lens by or close to the focus ring so that I can make quick overrides on the 60. Moving my hand may well frighten off some of the more timid critters.
The tamron needs the focus ring pulled back to disengage af. What does this feel/sound like? on both my FA*300 and Sigma 180 it's a bit of a clunk, more so on the FA*, plus when af kicks in you can hear it re-engage. Also my sigma needs this but also needs the af/mf switch on the body set to mf. Do I have to set the AF/MF switch on the body as well for the tamron?
Is there any 2nd hand macro lenses in the 90-105 range that might be a better fit for me? I see the pentax DFA 100 (not WR) had a focus limiter, but I don't know if it had manual focus override.
If I get serious about this purchase I can always pop down to SRS as I see they have both the Tamron and Pentax in so I can test for myself, but for now I thought others may have some ideas?
Of course the final drawback for the Pentax has to be the price, £484 vs £349 for the Tamron.
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Thanks. Good to hear, I use mirrorless cameras (m4/3) all the time and had never had a warm camera, so was surprised to feel the heat on the KP. However so far it's not caused a problem other than having a warm hand!

A beautiful set. Demoiselles have been pretty active around our area this year as well. It's great to see them both, we've even had a male stay around our garden pond for a few days. I don't know why he was there as they require running water, maybe he was fooled by our fountain!

Thanks, I only saw the 2nd critter later! too busy concentrating on the dragonfly and distracted by another dragonfly which had just landed above it.
Thanks. Nah, just good old hypnosis...
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Thanks. The light was great but it was breezy and lots of these insects like to sit on grass/twigs that move in the breeze, they could make my life easier.... if they cared...

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Thanks, being very sneaky helps!!

Thanks to everyone for taking the time to comment, much appreciated.

I went out for an evening walk with my KP and FA 100 F3.5 macro to a local meadow and was greeted by an abundance of dragonflies and butterflies starting to slow down for the night.
This is my first outing with the KP, I was using K3/K30 before this. I was pleasantly surprised that my KP now focuses perfectly with my FA 100 Macro as it always back focused by a massive amount on my K3, way past micro focus adjustments. It used to focus perfectly on all my previous Pentax's. So happy to have it back in use again!
I was slightly worried about the heat generated by the KP, it got quite warm to touch around the base/sides as I had been using live view and the flip out screen a lot, it was a warm evening but time will tell if it's an issue.

Thanks Haris for the heads up, just wanted to say it was the real bargain that it looked and jessops came through superbly. They didn't take any money until it was shipped.

Have you thought about the pentax 1.7x afa converter. I used this for a long time with my FA*300 F4.5 and regret selling it to buy the DA 1.4x. I don't know how familiar you are with it but it will give AF over a limited range, basically you set your lens to Manual focus (which I assume the Sigma can do?), pre-focus at an approx distance and the afa converter does the rest. It would convert your 200 to a 340 F4.8. You'd probably have to stop down the lens a bit to get the best sharpness. I've never used it with the sigma but used to use it with a Tokina AT-X 80-200 F2.8 manual focus lens and it worked pretty good on that. Also I know it used to work with old school full frame as it was designed in the film era and worked with my Z1 and Z20, so assume it will function ok on the k1? Perhaps others will chime in if this assumption is wrong.

I use a 25mm Kooka af extension tube. It's a very tight fit and you have to mount it with the aperture lever in the extension tube in the right place because it isn't spring loaded. A bit of a pain in the field, It AF's with both screw and sdm lenses fine (mainly used with FA*300 F4.5, DA*300 F4 and FA 100 F3.5) once you get it mounted correctly.
Here's an example of it on an DA*300 F4.


Not used the twin tubes shown though as they weren't available last year when I got mine.