Pentax DA25mm Barrel movement

Thomasbrowphoto · 03-10-2015, 05:13 PM

I have noticed my DA25mm lens has become somewhat sloppy and has unwanted play in the Barrel of the lens. I initially noticed it in live view whilst checking critical focus at 100% zoom, the frame was jumping all over the place just from touching the lens let alone focusing. I am surprised that such a expensive /solid lens can do this on its own? The Lens itself is always stored in a Pelican Hard Case and is looked after more than anything else I own. Has any one encounted this within the 645 lens range?

Here is a video of the slight movement Im talking about.

You Tube

I have sent it off to the Supplier/servicer for analysis, initially I asked for a replacement but was informed that the DA25mm in now Discontinued.

2351HD · 03-10-2015, 06:07 PM

Wow that's quite a bit.

Thomasbrowphoto · 03-10-2015, 06:27 PM

Originally posted by 2351HD

Wow that's quite a bit.

Yeah, I literally noticed it over night too. I love that lens.. I hope they can fix it

civiletti · 03-10-2015, 07:00 PM

For the price, the lens should return the love.

2351HD · 03-10-2015, 07:01 PM

There seemed to have been quite a few people with faults/complaints and issues with the 25. Perhaps it was a faulted design and that's why they decided to cut it.

I bought the 28-45 due to the fact that when I need wider than 22mm eq, I would need at least 15-16mm so I use another camera for that work.

Thomasbrowphoto · 03-10-2015, 07:15 PM

Originally posted by 2351HD

There seemed to have been quite a few people with faults/complaints and issues with the 25. Perhaps it was a faulted design and that's why they decided to cut it.

I bought the 28-45 due to the fact that when I need wider than 22mm eq, I would need at least 15-16mm so I use another camera for that work.

Yeah, I opted for the 25mm over the 28-45 purely for its wide capabilities. My other lenses cover roughly what the new wide zoom does. I have come into a few situations where even the 25mm is not wide enough for some creative visions. Just curious what you wide angle "other Camera" system is?

mikeSF · 03-10-2015, 07:51 PM

looks like some internal screws have worked themselves loose and that puppy is about to fall apart. I would get it in for service before something this happens to you:

happened to my almost brand new FA77 and pieces spontaneously fell on the ground without warning. be careful.

Thomasbrowphoto · 03-10-2015, 08:28 PM

Originally posted by mikeSF

looks like some internal screws have worked themselves loose and that puppy is about to fall apart. I would get it in for service before something this happens to you:

happened to my almost brand new FA77 and pieces spontaneously fell on the ground without warning. be careful.

Oh woah Mike thats a bad way to see any lens. What happened did it get repaired or replaced?

**Digitalis** · 03-10-2015, 11:22 PM

I agree with the other posts, get it to a service center ASAP.

Originally posted by mikeSF

happened to my almost brand new FA77 and pieces spontaneously fell on the ground without warning. be careful.

That happened to my MIJ copy of the FA77 too

2351HD · 03-11-2015, 06:35 AM

Originally posted by Thomasbrowphoto

Yeah, I opted for the 25mm over the 28-45 purely for its wide capabilities. My other lenses cover roughly what the new wide zoom does. I have come into a few situations where even the 25mm is not wide enough for some creative visions. Just curious what you wide angle "other Camera" system is?

Thomas,
I sell and install high end home cinema and need to take images of the rooms, so I use either a small Sony Nex6 and 10mm lens or a Canon 6D plus 14mm lens.
I do not shoot too much landscape under the 22mm eq of the zoom, but sometimes I wish I did have the 25mm purely for those odd shots.

itshimitis · 03-11-2015, 06:47 AM

I had a second hand one that did exactly that. It ended up being replaced with a brand new lens by Pentax.

See here:

https://www.pentaxforums.com/forums/48-pentax-medium-format/220388-problems-m...-25-f-4-a.html

Royce Howland · 03-11-2015, 07:37 AM

My DA 25mm literally fell apart in my hands while on a shoot last year. A couple of days before I had noticed some play in the barrel segments, exactly as shown in your video, Thomas. It came out of nowhere and within 48 hours the lens was in pieces. I sent it in and it was repaired, but it took 10 weeks to return to my hands.

mikeSF · 03-11-2015, 08:20 AM

Originally posted by Thomasbrowphoto

Oh woah Mike thats a bad way to see any lens. What happened did it get repaired or replaced?

thomas, my understanding was the thread lock was inadequately applied and these three screws worked loose (within 3-4 monts of use). I sent it to CRIS and they repaired it and it has been fine since.

VisualDarkness · 03-11-2015, 10:23 AM

I got a pretty high threshold but that is unacceptable for a premium lens!

BTH · 03-11-2015, 02:43 PM

Makes me extremely concerned about the used copy I just purchased : /

So, are they going to fix it and return?

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03-10-2015, 06:07 PM	#2
2351HD Veteran Member Join Date: Apr 2013 Location: Brisbane, Australia Photos: Albums Posts: 750	Wow that's quite a bit.

03-10-2015, 06:27 PM	#3
Thomasbrowphoto Veteran Member Join Date: May 2014 Location: NSW, Australia Posts: 335 Original Poster	Originally posted by 2351HD Wow that's quite a bit. Yeah, I literally noticed it over night too. I love that lens.. I hope they can fix it

03-10-2015, 07:00 PM	#4
civiletti Pentaxian Join Date: Jul 2010 Location: Oregon Photos: Albums Posts: 1,435	For the price, the lens should return the love.

03-10-2015, 07:01 PM	#5
2351HD Veteran Member Join Date: Apr 2013 Location: Brisbane, Australia Photos: Albums Posts: 750	There seemed to have been quite a few people with faults/complaints and issues with the 25. Perhaps it was a faulted design and that's why they decided to cut it. I bought the 28-45 due to the fact that when I need wider than 22mm eq, I would need at least 15-16mm so I use another camera for that work.

03-10-2015, 07:15 PM	#6
Thomasbrowphoto Veteran Member Join Date: May 2014 Location: NSW, Australia Posts: 335 Original Poster	Originally posted by 2351HD There seemed to have been quite a few people with faults/complaints and issues with the 25. Perhaps it was a faulted design and that's why they decided to cut it. I bought the 28-45 due to the fact that when I need wider than 22mm eq, I would need at least 15-16mm so I use another camera for that work. Yeah, I opted for the 25mm over the 28-45 purely for its wide capabilities. My other lenses cover roughly what the new wide zoom does. I have come into a few situations where even the 25mm is not wide enough for some creative visions. Just curious what you wide angle "other Camera" system is?

03-10-2015, 07:51 PM	#7
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,622	looks like some internal screws have worked themselves loose and that puppy is about to fall apart. I would get it in for service before something this happens to you: happened to my almost brand new FA77 and pieces spontaneously fell on the ground without warning. be careful.

03-10-2015, 08:28 PM	#8
Thomasbrowphoto Veteran Member Join Date: May 2014 Location: NSW, Australia Posts: 335 Original Poster	Originally posted by mikeSF looks like some internal screws have worked themselves loose and that puppy is about to fall apart. I would get it in for service before something this happens to you: happened to my almost brand new FA77 and pieces spontaneously fell on the ground without warning. be careful. Oh woah Mike thats a bad way to see any lens. What happened did it get repaired or replaced?

03-10-2015, 11:22 PM	#9
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	I agree with the other posts, get it to a service center ASAP. Originally posted by mikeSF happened to my almost brand new FA77 and pieces spontaneously fell on the ground without warning. be careful. That happened to my MIJ copy of the FA77 too

03-11-2015, 06:35 AM	#10
2351HD Veteran Member Join Date: Apr 2013 Location: Brisbane, Australia Photos: Albums Posts: 750	Originally posted by Thomasbrowphoto Yeah, I opted for the 25mm over the 28-45 purely for its wide capabilities. My other lenses cover roughly what the new wide zoom does. I have come into a few situations where even the 25mm is not wide enough for some creative visions. Just curious what you wide angle "other Camera" system is? Thomas, I sell and install high end home cinema and need to take images of the rooms, so I use either a small Sony Nex6 and 10mm lens or a Canon 6D plus 14mm lens. I do not shoot too much landscape under the 22mm eq of the zoom, but sometimes I wish I did have the 25mm purely for those odd shots.

03-11-2015, 06:47 AM	#11
itshimitis Pentaxian Join Date: May 2011 Location: All over the place Posts: 3,535	I had a second hand one that did exactly that. It ended up being replaced with a brand new lens by Pentax. See here: https://www.pentaxforums.com/forums/48-pentax-medium-format/220388-problems-m...-25-f-4-a.html

03-11-2015, 07:37 AM	#12
Royce Howland Senior Member Join Date: Nov 2010 Location: Calgary, Alberta Posts: 275	My DA 25mm literally fell apart in my hands while on a shoot last year. A couple of days before I had noticed some play in the barrel segments, exactly as shown in your video, Thomas. It came out of nowhere and within 48 hours the lens was in pieces. I sent it in and it was repaired, but it took 10 weeks to return to my hands.

03-11-2015, 08:20 AM	#13
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,622	Originally posted by Thomasbrowphoto Oh woah Mike thats a bad way to see any lens. What happened did it get repaired or replaced? thomas, my understanding was the thread lock was inadequately applied and these three screws worked loose (within 3-4 monts of use). I sent it to CRIS and they repaired it and it has been fine since.

03-11-2015, 10:23 AM	#14
VisualDarkness Veteran Member Join Date: Nov 2011 Location: Uppsala, Sweden Photos: Gallery Posts: 4,439	I got a pretty high threshold but that is unacceptable for a premium lens!

03-11-2015, 02:43 PM	#15
BTH New Member Join Date: Feb 2015 Location: San Diego, CA Posts: 11	Makes me extremely concerned about the used copy I just purchased : / So, are they going to fix it and return?