Fine Dust in D-FA* 70-200 2.8 Zoom/Focus Rings

Joshua A · 06-12-2016, 01:57 AM

So I've made the unfortunate choice of lending my new D-FA* 70-200 to my father, and it has returned with loudly gritty zoom and focusing rings. So I am faced with the decision of sending it of immediately to CRKennedy, or to persevere with it and hope it will self resolve. Will continued use of the lens in this state damage the lens further (I expect this to be answered yes)?

K-amps · 06-12-2016, 02:10 AM

Your Dad doesn't weather test camera gear on youtube does he?

biz-engineer · 06-12-2016, 02:36 AM

DFA70-200 is internal zoom and internal focusing? If so, how can this be that dust would produce "loudly gritty zoom and focusing rings."? Weird.

Joshua A · 06-12-2016, 02:38 AM

Originally posted by K-amps

Your Dad doesn't weather test camera gear on youtube does he?

Well the Finke Desert Race is pretty brutal, so most probably...

---------- Post added 06-12-16 at 07:11 PM ----------

Originally posted by biz-engineer

DFA70-200 is internal zoom and internal focusing? If so, how can this be that dust would produce "loudly gritty zoom and focusing rings."? Weird.

The sand and dust in Alice Springs is incredibly fine (finer than sea sand), and the large amounts of it kicked up during the Finke Desert Race is large, so I'm assuming he just got too close to the action.

Wild Mark · 06-12-2016, 03:18 AM

Sounds like a failure in the weather seals. Send it back under warranty without delay!

noelpolar · 06-12-2016, 03:50 AM - **1 Like**

Where ever possible.... I'd use somebody else's lens in red bull dust country! Smart dad!

Joshua A · 06-12-2016, 04:07 AM

Originally posted by Wild Mark

Sounds like a failure in the weather seals. Send it back under warranty without delay!

I've had good luck with CRKennedy and warranty repairs, so I'm hoping they'll be kind and CLA it under warranty.

---------- Post added 06-12-16 at 08:39 PM ----------

Originally posted by noelpolar

Where ever possible.... I'd use somebody else's lens in red bull dust country! Smart dad!

I do agree, it's just unfortunate that at 20, a $2700 AUD lens makes for significant investment on my side of things, and I really don't want to be replacing the lens 3 months in.

jawsy · 06-12-2016, 04:12 AM

Bulldust will get in everywhere because it's particle distribution is measured in microns. It gets thrown up in copious quantities and won't readily settle. Send to CRK.

Wild Mark · 06-12-2016, 04:12 AM

Originally posted by Joshua A

I've had good luck with CRKennedy and warranty repairs, so I'm hoping they'll be kind and CLA it under warranty.

I would start by saying the lens failed and see where that takes you. After all, it could have!

Sandy Hancock · 06-12-2016, 04:16 AM - **1 Like**

I would be suggesting to your father, in the strongest language possible, that he should be footing any repair bill.

Wild Mark · 06-12-2016, 04:19 AM

Originally posted by Sandy Hancock

I would be suggesting to your father, in the strongest language possible, that he should be footing any repair bill.

Here Here

Dad's are devious creatures

AussieTrev · 06-12-2016, 04:24 AM

At least he's a Pentax shooter.

CR Kennedy have been great with a couple repairs we have had warranty and paid. They can be just a bit slow.

Heie · 06-12-2016, 07:25 AM - **1 Like**

Originally posted by K-amps

Your Dad doesn't weather test camera gear on youtube does he?

I still haven't gotten the time machine working yet...

-Heie

bxf · 06-12-2016, 11:26 AM - **1 Like**

Originally posted by Wild Mark

Here Here

Where Where?

Originally posted by Sandy Hancock

I would be suggesting to your father, in the strongest language possible, that he should be footing any repair bill.

Hear Hear!

Wild Mark · 06-12-2016, 03:06 PM

Originally posted by bxf

Where Where?

cheeky

06-12-2016, 01:57 AM	#1
Joshua A Senior Member Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 273	*Fine Dust in D-FA 70-200 2.8 Zoom/Focus Rings** So I've made the unfortunate choice of lending my new D-FA* 70-200 to my father, and it has returned with loudly gritty zoom and focusing rings. So I am faced with the decision of sending it of immediately to CRKennedy, or to persevere with it and hope it will self resolve. Will continued use of the lens in this state damage the lens further (I expect this to be answered yes)?

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06-12-2016, 02:10 AM	#2
K-amps Senior Member Join Date: Mar 2016 Location: Fishers, IN Posts: 271	Your Dad doesn't weather test camera gear on youtube does he?

06-12-2016, 02:36 AM	#3
biz-engineer Pentaxian Join Date: Feb 2015 Photos: Gallery Posts: 12,231	DFA70-200 is internal zoom and internal focusing? If so, how can this be that dust would produce "loudly gritty zoom and focusing rings."? Weird.

06-12-2016, 02:38 AM	#4
Joshua A Senior Member Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 273 Original Poster	Originally posted by K-amps Your Dad doesn't weather test camera gear on youtube does he? Well the Finke Desert Race is pretty brutal, so most probably... ---------- Post added 06-12-16 at 07:11 PM ---------- Originally posted by biz-engineer DFA70-200 is internal zoom and internal focusing? If so, how can this be that dust would produce "loudly gritty zoom and focusing rings."? Weird. The sand and dust in Alice Springs is incredibly fine (finer than sea sand), and the large amounts of it kicked up during the Finke Desert Race is large, so I'm assuming he just got too close to the action.

06-12-2016, 03:18 AM	#5
Wild Mark Veteran Member Join Date: Jun 2013 Location: Newcastle Photos: Gallery \| Albums Posts: 1,954	Sounds like a failure in the weather seals. Send it back under warranty without delay!

06-12-2016, 03:50 AM - 1 Like	#6
noelpolar Veteran Member Join Date: Oct 2013 Location: Goolwa, SA Photos: Gallery Posts: 4,310	Where ever possible.... I'd use somebody else's lens in red bull dust country! Smart dad!

06-12-2016, 04:07 AM	#7
Joshua A Senior Member Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 273 Original Poster	Originally posted by Wild Mark Sounds like a failure in the weather seals. Send it back under warranty without delay! I've had good luck with CRKennedy and warranty repairs, so I'm hoping they'll be kind and CLA it under warranty. ---------- Post added 06-12-16 at 08:39 PM ---------- Originally posted by noelpolar Where ever possible.... I'd use somebody else's lens in red bull dust country! Smart dad! I do agree, it's just unfortunate that at 20, a $2700 AUD lens makes for significant investment on my side of things, and I really don't want to be replacing the lens 3 months in.

06-12-2016, 04:12 AM	#8
jawsy Veteran Member Join Date: Mar 2009 Location: Australia Photos: Gallery \| Albums Posts: 422	Bulldust will get in everywhere because it's particle distribution is measured in microns. It gets thrown up in copious quantities and won't readily settle. Send to CRK.

06-12-2016, 04:12 AM	#9
Wild Mark Veteran Member Join Date: Jun 2013 Location: Newcastle Photos: Gallery \| Albums Posts: 1,954	Originally posted by Joshua A I've had good luck with CRKennedy and warranty repairs, so I'm hoping they'll be kind and CLA it under warranty. I would start by saying the lens failed and see where that takes you. After all, it could have!

06-12-2016, 04:16 AM - 1 Like	#10
Sandy Hancock Moderator Site Supporter Join Date: Feb 2012 Location: Adelaide Hills, South Australia Photos: Gallery \| Albums Posts: 11,272	I would be suggesting to your father, in the strongest language possible, that he should be footing any repair bill.

06-12-2016, 04:19 AM	#11
Wild Mark Veteran Member Join Date: Jun 2013 Location: Newcastle Photos: Gallery \| Albums Posts: 1,954	Originally posted by Sandy Hancock I would be suggesting to your father, in the strongest language possible, that he should be footing any repair bill. Here Here Dad's are devious creatures

06-12-2016, 04:24 AM	#12
AussieTrev Veteran Member Join Date: Jul 2010 Location: Queensland Photos: Gallery \| Albums Posts: 3,590	At least he's a Pentax shooter. CR Kennedy have been great with a couple repairs we have had warranty and paid. They can be just a bit slow.

06-12-2016, 07:25 AM - 1 Like	#13
Heie Veteran Member Join Date: Nov 2011 Photos: Gallery \| Albums Posts: 968	Originally posted by K-amps Your Dad doesn't weather test camera gear on youtube does he? I still haven't gotten the time machine working yet... -Heie

06-12-2016, 11:26 AM - 1 Like	#14
bxf Veteran Member Join Date: Jul 2010 Location: Lisbon area Posts: 1,660	Originally posted by Wild Mark Here Here Where Where? Originally posted by Sandy Hancock I would be suggesting to your father, in the strongest language possible, that he should be footing any repair bill. Hear Hear!

06-12-2016, 03:06 PM	#15
Wild Mark Veteran Member Join Date: Jun 2013 Location: Newcastle Photos: Gallery \| Albums Posts: 1,954	Originally posted by bxf Where Where? cheeky