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Tuesday Teaser

Chrism8
Posted 20/12/2016 - 09:46 Link
A small problem,

I've been sorting my filters out to cover a multitude of lens diameters and now have all filters in 82mm and use a reducing ring to drop to 77mm and 72mm,

One problem I'm having is cos both the reducing rings and filters are slim line, I've had difficulty getting them separated after use, the seem to wish to lock together, foolishly I managed it this morning then in trying to resolve the problem, got them stuck again and its taken 20 mins to bl.........ming split them again

Any tips or thoughts on not necessarily an easier way to split them, but a way of preventing the problem in the first place ?
Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax DFA 150 -450 F4.5 / 5.6, Pentax DFA* 24 - 70 F2.8

Samyang 14mm F2.8, Pentax DFA* 70-200 F2.8

K3iii + K3ii + K5iis converted to IR, Sigma 17 - 70 F2.8, Pentax 55 - 300 F4.5 / F5.6 PLM
DOIK
Posted 20/12/2016 - 11:15 - Helpful Comment Link
Not a recommendation, but if I was having this problem I would try running a pencil around the threads to get a little graphite on them.

John
johnriley
Posted 20/12/2016 - 11:51 - Helpful Comment Link
There are filter removing devices that grip the filter equally all the way round. Part of the problem is that if we use our hands we distort the filter shape which makes it harder to remove.

Also, try a rubber mat, placing the filter face down onto it. It grips, enabling better leverage when removing the other part, and also avoids the distorting effect.

Otherwise, don't fit filters tightly.
Best regards, John
scarr1
Posted 20/12/2016 - 11:59 - Helpful Comment Link
spray a small (tiny!!) amount of silicone spray onto a cloth and wipe around male thread. screw into female to transfer to that thread and give a few forward/backward turns.
I use wd40 branded silicone spray, from screwfix.
this...
http://www.screwfix.com/p/wd-40-specialist-silicone-lubricant-400ml/86394?kpid=8...
Edited by scarr1: 20/12/2016 - 12:01
Chrism8
Posted 20/12/2016 - 12:23 Link
Hi All,

Thanks for the replies so far,

I'd already tried the WD40 type fluid and the graphite suggestion, The Rubber Matt John is a good tip and will try that, will also look at the Silicone spray suggestion !!
Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax DFA 150 -450 F4.5 / 5.6, Pentax DFA* 24 - 70 F2.8

Samyang 14mm F2.8, Pentax DFA* 70-200 F2.8

K3iii + K3ii + K5iis converted to IR, Sigma 17 - 70 F2.8, Pentax 55 - 300 F4.5 / F5.6 PLM
Algernon
Posted 20/12/2016 - 12:58 - Helpful Comment Link
I usually make a ring out of Blu-Tac and stick it onto a formica worktop it grips the filter.

Sometimes if the filter is slightly oval squeezing it at the widest point is enough to free it.

--
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi
Chrism8
Posted 20/12/2016 - 13:05 Link
I've been thinking of an " O " ring in the reducing ring, the thread is deep enough to take one, the thinnest available is 1.5mm and this would prevent the two surfaces from locking together.

Have sourced some at minimal cost, will advise if it works when they arrive.
Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax DFA 150 -450 F4.5 / 5.6, Pentax DFA* 24 - 70 F2.8

Samyang 14mm F2.8, Pentax DFA* 70-200 F2.8

K3iii + K3ii + K5iis converted to IR, Sigma 17 - 70 F2.8, Pentax 55 - 300 F4.5 / F5.6 PLM
swarf
Posted 20/12/2016 - 13:47 Link
DOIK wrote:
Not a recommendation, but if I was having this problem I would try running a pencil around the threads to get a little graphite on them.

John

I use this approach, and it generally works well. If I still get one sticking, I put a rubber band around the edge to provide that bit of extra grip.

phil
K-5iiS; K-r; ME Super; ME; DA* 16-50 f2.8; DA 18-135 WR; DA 55-300 WR; HD DA 15mm F4 ED AL Limited; FA 50mm f1.4; A50mm f1.7; DAL 18-55mm; M40mm f2.8; + assorted non-Pentax lenses

My Flikr Page link
vic cross
Posted 20/12/2016 - 15:10 - Helpful Comment Link
Chris said "O" rings. Just pop a rubber band (which is much cheaper and thinner) around the mail thread into the undercut of the thread. this will stop metal to metal contact on the faces of the filters and the light pressure needed to keep them from coming apart will allow them to be unscrewed with ease.
CHEERS Vic.
Born again biker with lots of Pentax bits. Every day I wake up is a good day. I'm so old I don't even buy green bananas.
Chrism8
Posted 20/12/2016 - 15:40 Link
Thanks Vic, had thought of that, the rubber bands I have were no good, I've sourced the O rings to sit inside the reduction rings, 3 for 5 so worth a punt.
Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax DFA 150 -450 F4.5 / 5.6, Pentax DFA* 24 - 70 F2.8

Samyang 14mm F2.8, Pentax DFA* 70-200 F2.8

K3iii + K3ii + K5iis converted to IR, Sigma 17 - 70 F2.8, Pentax 55 - 300 F4.5 / F5.6 PLM
SteveEveritt
Posted 20/12/2016 - 20:20 - Helpful Comment Link
use a rubber placemat/mug stand press firmly down on that it gives you all round the filter grip.
Flickr
"Life is what happens to you while you're busy making other plans" (John Lennon)
cardiffgareth
Posted 20/12/2016 - 20:34 - Helpful Comment Link
Last time it happened to me I used one of these:

http://www.ebay.co.uk/itm/2-Piece-STRAP-WRENCH-SET-For-Gripping-Loosening-Tighte...

Worked a treat
Gareth Williams ARPS

My outfit: K1ii - Pentax D FA 24-70mm f2.8 - Pentax DA* 300mm f4 - Pentax modified DA* 60-250mm f4 - Irix 15mm Firefly - Pentax FA 35mm - FA 50mm f1.4 - Tamron SP 90mm macro - Pentax AF 540 FGZ II

Welsh Photographer
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Instagram
My PPG
Foundation NFT
vic cross
Posted 20/12/2016 - 20:49 Link
Gareth has it right. All round even pressure no distortion should work a treat. I bet he uses his to put his moon boot on and off.
CHEERS Vic.
Born again biker with lots of Pentax bits. Every day I wake up is a good day. I'm so old I don't even buy green bananas.
Chrism8
Posted 20/12/2016 - 20:53 Link
vic cross wrote:
Gareth has it right. All round even pressure no distortion should work a treat. I bet he uses his to put his moon boot on and off.
CHEERS Vic.

LOL 😆
Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax DFA 150 -450 F4.5 / 5.6, Pentax DFA* 24 - 70 F2.8

Samyang 14mm F2.8, Pentax DFA* 70-200 F2.8

K3iii + K3ii + K5iis converted to IR, Sigma 17 - 70 F2.8, Pentax 55 - 300 F4.5 / F5.6 PLM
cardiffgareth
Posted 20/12/2016 - 21:08 Link


I can report it's now off! Just got to get the tendons working as they should and I'm home and dry! Walking around like I have a gangster limp!
Gareth Williams ARPS

My outfit: K1ii - Pentax D FA 24-70mm f2.8 - Pentax DA* 300mm f4 - Pentax modified DA* 60-250mm f4 - Irix 15mm Firefly - Pentax FA 35mm - FA 50mm f1.4 - Tamron SP 90mm macro - Pentax AF 540 FGZ II

Welsh Photographer
Flickr
Instagram
My PPG
Foundation NFT

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