D FA* 70-200 Communication with Camera Issue

sungibr · 05-10-2016, 05:18 AM - **1 Like**

Quote:

A fresh battery is a good point. I had started with a fresh battery for the baseball game I was shooting and experienced the problem after 750 shots. Maybe the battery is the problem. (They are orig. Pentax batteries.)

750 shots is closer to max autonomy of that battery...

Also, I have a K5II, but had a K5 before with two OEM batteries. I sold it, but by mistake,I put the less used battery in the pack and keept the original and older one that was bundled, so it is a very first batch.

So, when they are getting closer to depletion, I can measure the speed of the AF becoming slower. With pull charge, the AF is a hell of a speed demon. Well, with the 16-50 screwdrived, at least, who's my most used lens. Can't garantee is the same with mine Sigma 70-200 hsm, but some times I can fell some hunting.

hypermodern · 02-27-2019, 02:27 PM

Originally posted by Not a Number

Point the lens straight up or down so the weight of the camera or lens is evenly distributed on the mount and see if that makes a difference.

Perhaps all you need is to tighten the screws a touch on the mount, camera and or lens.

I have just fixed a very similar issue by tightening the lens mount screws, thank you Not a Number!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Some pictures shot with my new HD Pentax-D FA* 70-200/2.8 ED DC AW	Austro-Diesel	Pentax SLR Lens Discussion	17	04-11-2016 11:31 AM
D FA* 70-200 price drop	mattieyp3	Pentax Price Watch	8	03-16-2016 09:18 AM
D FA* 70-200 removed from website???	mattieyp3	Pentax News and Rumors	47	12-08-2015 08:56 PM
D FA* 70-200 and D FA 150 - 450 samples	davidsladek	Pentax SLR Lens Discussion	54	03-28-2015 09:56 PM
HD Pentax D-FA* 70-200 F2.8	starjedi	Pentax SLR Lens Discussion	2	02-03-2015 10:53 AM

05-10-2016, 05:18 AM - 1 Like	#16
sungibr Senior Member Join Date: Jan 2011 Location: Sao Paulo Photos: Albums Posts: 149	Quote: A fresh battery is a good point. I had started with a fresh battery for the baseball game I was shooting and experienced the problem after 750 shots. Maybe the battery is the problem. (They are orig. Pentax batteries.) 750 shots is closer to max autonomy of that battery... Also, I have a K5II, but had a K5 before with two OEM batteries. I sold it, but by mistake,I put the less used battery in the pack and keept the original and older one that was bundled, so it is a very first batch. So, when they are getting closer to depletion, I can measure the speed of the AF becoming slower. With pull charge, the AF is a hell of a speed demon. Well, with the 16-50 screwdrived, at least, who's my most used lens. Can't garantee is the same with mine Sigma 70-200 hsm, but some times I can fell some hunting.

02-27-2019, 02:27 PM	#17
hypermodern Senior Member Join Date: Jun 2018 Posts: 131	Originally posted by Not a Number Point the lens straight up or down so the weight of the camera or lens is evenly distributed on the mount and see if that makes a difference. Perhaps all you need is to tighten the screws a touch on the mount, camera and or lens. I have just fixed a very similar issue by tightening the lens mount screws, thank you Not a Number!