Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
05-21-2014, 09:10 PM   #1
Veteran Member




Join Date: Nov 2013
Posts: 385
What is it with Sigma lens caps?

Just got my third Sigma lens and with all of them I find putting the lens cap back on is a real pain. With Pentax lenses it just snaps on but with Sigma lenses I always have to fiddle around until it snaps on.

Has anybody else noticed this?

05-21-2014, 09:35 PM   #2
Pentaxian
Bob from Aus's Avatar

Join Date: Jul 2011
Location: Australia
Photos: Gallery
Posts: 1,082
G'day - welcome to the world of sigma pain.

I'm assuming you are talking about the cap on on bayonet mount. Yes is the answer

Solution - I purchased a dozen pentax caps from B&H and hid the sigma ones in a cupboard never to see the light of day. I assume you will not need as many caps.

Last edited by Bob from Aus; 05-22-2014 at 02:04 AM.
05-21-2014, 11:51 PM   #3
Pentaxian
calsan's Avatar

Join Date: Nov 2008
Location: Perth, Australia
Photos: Gallery
Posts: 1,373
That's exactly what I did too.
05-22-2014, 12:26 AM   #4
Site Supporter
kiwi_jono's Avatar

Join Date: Dec 2009
Location: Christchurch, New Zealand
Photos: Gallery | Albums
Posts: 1,052
Whats more Sigma caps have the potential to mark the coating on some lenses if you are not careful putting the cap on. I know of a couple of Sigma 17-70 (original one at least) where that happened. I learnt the hard way and have a slight mark on mine.

Yep put them away - they are not worth it.

Sigma are making some pretty impressive glass these days. I would have hoped they had fixed the lens caps by now.

05-22-2014, 03:26 AM   #5
Pentaxian




Join Date: Oct 2009
Location: Far North Qld
Posts: 3,263
I only have one Sigma lens, the 30mm F1.4 EX. The cap is a pinch type like all my PENTAX lens caps and snaps on just as easy.
The cap I do have a fiddle with is the one supplied with the MX-1.
05-22-2014, 05:52 AM   #6
Veteran Member
GabrielFFontes's Avatar

Join Date: Jul 2011
Location: Rio de Janeiro, Brazil
Posts: 647
Yeah, you do have to align the part of the cap that goes ----| |---- with the red dot, and then it snaps on...Pentax type is way better, though.
05-22-2014, 05:58 AM   #7
Pentaxian




Join Date: Oct 2011
Location: Savannah, GA
Posts: 4,989
Sigma rear caps are bizarre -- I think the Pentax version is a dual design that also fits on their own Sigma mount, maybe that's why, although even their old caps from 20 years ago are a little strange. Never noticed anything special about their front pinch-caps though...
05-22-2014, 06:35 AM   #8
Pentaxian
bdery's Avatar

Join Date: Mar 2008
Location: Quebec city, Canada
Photos: Gallery
Posts: 5,694
I talked to a Sigma rep at a photo show, asking why they made such crappy caps. He said "I don't know what you'er talking about, we never have problems", and his colleague joined the conversation by saying "come on dude, stop pretending, we know they're horrible"...

05-22-2014, 09:51 AM   #9
Veteran Member




Join Date: Nov 2013
Posts: 385
Original Poster
Just have him put the cap on a 70-200 with the hood on...
05-22-2014, 10:40 AM   #10
Site Supporter
Tako Kichi's Avatar

Join Date: May 2013
Location: SW Ontario, Canada (ex-pat Brit)
Posts: 1,027
I've not noticed a problem with the pinch cap on my Sigma 105mm macro but with all my pinch caps I tend to hook one side into the filter threads and then pinch in the other side rather than trying to pinch in both slides at once.

Re. using pinch caps with hoods I am thinking of buying a large after-market lens cap for my Sigma that will fit the wide end of the hood as it can be a bit tricky to put the stock cap on with the hood in place. As the hood screws into the filter threads it's not as easy as a bayonet type to remove/reverse so that you can put on a lens cap.
05-22-2014, 10:59 AM   #11
MJL
Site Supporter
MJL's Avatar

Join Date: Jan 2011
Location: The Canadian WetCoast
Photos: Albums
Posts: 365
I have different experience with different version of Sigma rear lens caps and the Pentax being hardest to put on. Regarding the front caps, they are no worst than many other makers such as Zeiss. I suspense the front thread material are getting softer (cheap plastic?) because it is getting harder to even screw a front filter onto their lenses now.
05-22-2014, 12:14 PM   #12
Veteran Member




Join Date: Sep 2012
Posts: 410
The front cap on my Sigma 105mm Macro is perfectly easy to put on and take off. The front cap on the 10-20mm and the 28mm are horrible. Sigmas back caps are awful abominations. As are Tamrons.
05-22-2014, 03:44 PM   #13
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,467
QuoteOriginally posted by maxxxx Quote
Has anybody else noticed this?
Yep...

The one for my Sigma 50/2.8 EX DG Macro works just fine. The one on my Sigma 17-70/2.8-4 DC HSM Macro (C) is a royal pain. It almost always pops off immediately after I put it on and is almost impossible to engage with the hood mounted. The bad news is that it is my understanding that style cap is to be migrated to the entire line


Steve

---------- Post added 05-22-14 at 03:52 PM ----------

QuoteOriginally posted by stevebrot Quote
It almost always pops off immediately after I put it on
Ok...I just spent a couple of minutes with the cap for the 17-70 and determined that there is a trick to engaging the filter threads. Using the right hand, angle the cap onto the threads on the right side holding the cap with middle finger tip on the right edge and thumb tip on the release slider grip. Engage the right side and snap in with your thumb. Reverse the instructions if you are left-handed.


Steve
05-22-2014, 04:01 PM   #14
Pentaxian
Bob from Aus's Avatar

Join Date: Jul 2011
Location: Australia
Photos: Gallery
Posts: 1,082
QuoteOriginally posted by stevebrot Quote
The one for my Sigma 50/2.8 EX DG Macro works just fine. The one on my Sigma 17-70/2.8-4 DC HSM Macro (C) is a royal pain. It almost always pops off immediately after I put it on and is almost impossible to engage with the hood mounted. The bad news is that it is my understanding that style cap is to be migrated to the entire line
I think Maxxxx was talking about the rear caps. With the front caps Sigma has a clever built solution. Because you lose the cap really quickly you will buy a cheap generic cap which will work better.
05-22-2014, 04:05 PM   #15
Pentaxian
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,579
[Sigma rear caps]
perhaps Sigma forgot about all us night photographers who put the caps on in the dark.
I threw all the Sigma caps away and bought Pentax ones.

Last edited by mikeSF; 05-22-2014 at 04:54 PM.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
cap, caps, front, k-mount, lens, lenses, macro, pentax lens, pm, post, sigma, sigma lens, slr lens, steve, threads, thumb, tip, video
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is it me, this Kalt lens I picked up, or what? pres589 Troubleshooting and Beginner Help 31 12-15-2015 10:51 PM
What is it with spam or scams on here?? Pentaxguy22 General Talk 17 01-11-2013 12:30 PM
Sigma's Lens OS...what can you do with it? slackercruster Pentax SLR Lens Discussion 4 04-12-2012 03:00 PM
What single lens can do it all? is it possible? bolek Pentax DSLR Discussion 18 10-26-2007 07:33 AM
Came with K10D - What is it? Tom M Pentax DSLR Discussion 20 08-21-2007 01:53 PM



All times are GMT -7. The time now is 05:34 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top