It’s gone up in price considerably, just had to order one at £39 inc VAT.

Just got the estimate from Johnson's Photopia.....

"If it is just this part that requires replacement the technician has advised an
approx cost of £80.00 + Vat - partial repair and clean subject to inspection"

I won't be bothering at that price (camera coming up to 3 years old).
It seems to be working fine as it is.

I went out with my camera and DA*300 mm today and noticed that the tripod foot mount was missing from the lens. The ring and its screw are still intact. I'd no idea that the foot was detachable until now. I've not dropped the camera nor has it collided with anything. The foot has just somehow become detached.
The lens is less than 1 year old, purchased from SRS Microsystems. I'm unsure as to whether I should contact SRS or johnson's Photopia.

It's not completely accessible from within the battery compartment. It looks like it would involve some dismantling. I won't be going there!

It happened to my K30 recently. It seems to work fine without the retainer in place. I expected it to fail so I carried some adhesive foam (draught excluder) with me to stick to the back of the battery door to give extra pressure onto the battery. I didn't need it, but I'm not confident. I think it will fail at some point. I'm going to request an estimate for repair. From experience, I reckon the cost will be outrageous.

Thanks, Bill.
I have a Pentax 1.4x converter and am now awaiting delivery of the lens from SRS Microsystems.
I had the lens on my Amazon wish list and had been watching the price for some time. It came down by £150 on Friday to £849.
I decided to google it before ordering and found it at £699 from SRS, so they got my order.

much appreciated

Thank you

Greatly appreciate that, thank you.

Hello

I have been interested in purchasing a Pentax DA* 300mm F4 ED IF SDM Lens, so have been reading up on it.

I have read on this site that "The SDM (Supersonic Motor) system can only be used with Pentax K10D, K20D and K100D Super. All other Pentax DSLR cameras use the AF drive system incorporated in the camera body”
https://www.pentaxuser.com/news/pentax-da-digital-slr-lenses-12

I’m confused by this statement as the pdf download for DA lenses states:
“Supersonic motor compatible camera body :K series (excluding K100D & K110D)”
http://www.ricoh-imaging.co.uk/en/product/21760/body/downloads/Photo-Lenses.html

The statement on Pentax Users site suggests that my K30 is not compatible, however the statement on the Pentax PDF seems to suggest that it is.

I would welcome comments from users with K30 & SDM lens combinations, or anyone with a better understanding that me !