"The 12-24 would be good place to start, at f/8 on long exposure, ISO 100. Manual mode and experiment"

this will be fine if you intend to do star trails , or a series of 30 sec exposures which i prefer as it cuts down on extraneous light from city/town lights. you blend them together in Startrails.exe or StarTrax both of which are free and very good. another tip i found if you would like a dark blue sky is to use tungsten WB.
if you are tinking of astro photography then probably best finding people that do that for advice as that is a totally different ball game




this is 107 30sec exposures using DA15 @f5.6 put together in Startrails.exe then a bit of tweaking in ps

these were done using a Teleplus x2 Macro converter that gives 1:1 with a 50mm lens, i used an FA50 f1.7. the converter is PK fit so no electrical contact with camera but works a treat with catch in focus. it was a breezy day so they were not happy flying for long periods and landed frequently.

is there any difference in iq between 1, Pentax A 70-210 f4 and
2, Pentax F 70-210 f4-5.6

working fine now

lens arrived safe & sound very well packed and in excellent condition.
thanks Barrie for a smooth speedy transaction

just realised it should be StarStax not trax ,wonderful growing old

would make great coaster mats for the hot toddie, lovely rich autumnal colours.

thanks again for the comments. with ref. the software, this was done with star trails.exe after a couple of tweaks in lightroom which were syncronised to all images. i did try star trax but this was the cleanest version. with star trax you fill gaps manually whereas stratrails does it all for you, maybe with practice i could improve it with star trax, both pretty good for free software though

does give the appearance of some sort of vortex to another dimension

thanks for the comments, did the same as you daz on my first attempt put me off trying any more until i heard about stacking. was quite surprised how many showed through with a full moon in the sky so can,t wait to try with a new moon.

not a footie fan so had a go at this last night. second time i have tried this but this is the first time stacking, used Startrails.exe and for those interested (Nigel)
DA15 f4 @f5.6, iso 200,30sec, wb tungsten,continuous shooting 107 exposures using locked remote, camera sat on floor on gorilapod ,me sat in car in warm, a full moon. a few jaggies not sure how to improve, more shots same settings or a lot more at shorter shutter speed. any help appreciated