All Forum Comments
Comment by Clarky posted on Tokina 90mm f2.5 macro at 20/08/2007 - 00:58
Very clever John but i would substitue the cloth for one of the many odd socks i have lying around
Comment by Clarky posted on Pentax SMC-M 50mm f1.7 at 19/09/2007 - 13:28
You can include socks with those biros and springs, My washing machine eats them i think
Comment by Clarky posted on Pentax SMC-M 50mm f1.7 at 20/08/2007 - 00:21
Quote:
also strong torch/flash lights used to sidelight and a strong magnet make spotting and sweeping small parts a breeze.
Believe it or not but i dismantled an old tele converter that had some hazing i wasnt expecting to achieve anything as i had never dismantled one before, well the spring flew out and i was on my knees for 10 mins before giving up. well i found the spring when i went to finish my coffee it had landed in my coffee cup Quote:
One day I'll dismantle it, watch the tiny springs ping around the room, and spend a couple of hours on my hands and knees..
magnetic sheets (like the type used for making stick-on car signs) make great workpads for jobs like that.One day I'll dismantle it, watch the tiny springs ping around the room, and spend a couple of hours on my hands and knees..
also strong torch/flash lights used to sidelight and a strong magnet make spotting and sweeping small parts a breeze.
Comment by Clarky posted on Pentax SMC-M 50mm f1.7 at 19/08/2007 - 13:59
Quote:
Metering works fine on my Kenko tubes, and the Jessops set that ChrisA mentions. The Jessops tubes do need the mod for the 7th pin though.
Chris, thanks for the credit . . . again
I think any tubes will do as long as they have the requisite number of electrical pass-through contacts to convey lens info to camera and vice-versa. Some have even been known to use multiple sets to achieve astronomical magnification. Having ample light of course, is a must.
Thanks guys i have never used them before and i have done a stack of reading up on them and would like to give them a go.Metering works fine on my Kenko tubes, and the Jessops set that ChrisA mentions. The Jessops tubes do need the mod for the 7th pin though.
Chris, thanks for the credit . . . again
I think any tubes will do as long as they have the requisite number of electrical pass-through contacts to convey lens info to camera and vice-versa. Some have even been known to use multiple sets to achieve astronomical magnification. Having ample light of course, is a must.
Comment by Clarky posted on Extension Tubes at 18/08/2007 - 16:30
Quote:
You have a PM
Replied to your PM, I hope anyway i haven't used the PM before You have a PM
Mannesty I am not to fussed about AF but still would like the metering from the body if possible. I know i can get those cheapy tubes from China for a couple of quid but prefer the better quality tubes.
Comment by Clarky posted on Extension Tubes at 18/08/2007 - 15:40
Quote:
But for the camera to swap aperture information with the lens, it seems that the 7th contact needs to be shorted through the metal of the tubes to the lens.
However the tubes are painted, so the 7th contact touches only an insulator.
The solution is to scrape a bit of paint off the tubes, where the 7th contact touches, thus:
Smoke and mirrors, but it works.
All credit to Mannesty for I got the idea for the fix from him. All I did was attack the tubes with a sharp instrument one night. They work fine now, and being able to set the aperture from the body is very handy.
I understand what you are saying Chris thanks.Clarky wrote:
Chris what sort of modification did you have to make. :
Basically, there are 7 contacts on the camera mount, but only 6 on the Jessops tubes.Chris what sort of modification did you have to make. :
But for the camera to swap aperture information with the lens, it seems that the 7th contact needs to be shorted through the metal of the tubes to the lens.
However the tubes are painted, so the 7th contact touches only an insulator.
The solution is to scrape a bit of paint off the tubes, where the 7th contact touches, thus:
Smoke and mirrors, but it works.
All credit to Mannesty for I got the idea for the fix from him. All I did was attack the tubes with a sharp instrument one night. They work fine now, and being able to set the aperture from the body is very handy.
Comment by Clarky posted on Extension Tubes at 17/08/2007 - 17:56
Your right Gwyn, So its the tubes that are contradictory not the description.
Would you be willing to sell off those tubes to a poor Aussie and if so how much. Thanks
Would you be willing to sell off those tubes to a poor Aussie and if so how much. Thanks
Comment by Clarky posted on Extension Tubes at 17/08/2007 - 17:53
Thanks guys. The item description seems to contradict itself so i am not sure.
It is clearly shown on the item AF PK/A but no visible brand name.
Chris what sort of modification did you have to make. :
It is clearly shown on the item AF PK/A but no visible brand name.
Chris what sort of modification did you have to make. :
Comment by Clarky posted on Extension Tubes at 17/08/2007 - 17:34
It seems cheap enough
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&rd=1&item=320147943925&ssPageName=STRK:MEWA:IT&ih=011
Thanks