| View previous topic :: View next topic |
| Author |
Message |
Nikos
Joined: 17 May 2010
Posts: 1077
Location: Greece
Expire: 2015-01-02
|
 Posted: Sat Jan 21, 2012 1:53 pm Post subject: Advice needed: tiny spots on brand new lens |
 |
|
Nikos wrote:
Today I had a chance (at last!) to go out and shoot in daylight.
I noticed my brand new Zeiss C Biogon 21mm has two tiny spots near the edge of the front element.
It seems there is an issue with its coating.
Getting back home, I could not see these spots indoors, even with a lot of artificial light.
One has to look at a certain angle and with lots of daylight to see these spots.
Apparently, they do not affect image quality.
But what if it gets worse in the future?
I guess Zeiss will be more willing to accept the fact 15 days after the purchase date, than a year later.
Is the peeling of the coating covered by the guarantee?
What would you do?
_________________
Νίκος • www.diafragma.gr
Cameras: Canon EOS 5D Mark II, Sony α7R, Sony NEX-5N
MF lenses:
SLR:
Canon TS-E 17mm f/4, Zeiss 2.8/21 ZE, Zeiss 2/28 Contax, Zeiss 2/35 ZE, Zeiss 1.4/50 Contax, Zeiss 1.4/85 Contax, Zeiss Makro 2/100 ZE,
Zeiss 2/135 Contax, Zeiss 2.8/135 Contax, Zeiss Vario-Sonnar 35-70 Contax, Zeiss Vario-Sonnar 100-300 Contax, Zeiss F-Distagon Rollei, Canon FD 24mm f2, Minolta MD Rokkor 35mm f2.8
Rangefinder:
Zeiss 4.5/21 C Biogon ZM, Zeiss 2/35 Biogon ZM, Voigtländer 15mm f/4.5 Heliar L39, Leica Tele-Elmarit 2.8/90mm, Zeiss 2/45 Contax G, Zeiss 2.8/90 Contax G, Canon 50mm 1.8 LTM
AF lenses: Canon 15mm f/2.8 Fisheye, Canon 24-70 f/2.8 L, Canon 70-200 f/2.8 L IS II, Canon 70-200 f/4 L, Canon 300 f/4 L IS, Canon 100 f/2.8 macro
|
|
| Back to top |
|
 |
FluffPuppy
Joined: 11 Dec 2011
Posts: 365
|
| Posted: Sat Jan 21, 2012 3:35 pm Post subject: Re: Advice needed: tiny spots on brand new lens |
|
|
FluffPuppy wrote:
| Nikos wrote: |
Today I had a chance (at last!) to go out and shoot in daylight.
I noticed my brand new Zeiss C Biogon 21mm has two tiny spots near the edge of the front element.
It seems there is an issue with its coating.
Getting back home, I could not see these spots indoors, even with a lot of artificial light.
One has to look at a certain angle and with lots of daylight to see these spots.
Apparently, they do not affect image quality.
But what if it gets worse in the future?
I guess Zeiss will be more willing to accept the fact 15 days after the purchase date, than a year later.
Is the peeling of the coating covered by the guarantee?
What would you do? |
Not sure what it is, but obviously take it back if it trouble you, then get a Leica lens next time. |
|
| Back to top |
|
|
kryss
Joined: 13 Sep 2009
Posts: 2169
Location: Canada
Expire: 2017-09-18
|
| Posted: Sat Jan 21, 2012 4:16 pm Post subject: |
|
|
kryss wrote:
Getting tired of only hearing you yak about Leica. |
|
| Back to top |
|
|
Ymmot
Joined: 24 Sep 2011
Posts: 168
|
| Posted: Sat Jan 21, 2012 5:06 pm Post subject: |
|
|
Ymmot wrote:
+1
Now for something more ontopic than trying to convert people when they seek advice:
Taking the chance to be Captain Obvious here, I would email them to ask about it or call the customer service, the only way to make sure I guess.
I don't have the budget to have any experience with their waranty policy  , though I would expect that kind of thing to be covered for lenses in this priceclass. |
|
| Back to top |
|
|
Nikos
Joined: 17 May 2010
Posts: 1077
Location: Greece
Expire: 2015-01-02
|
| Posted: Sat Jan 21, 2012 5:59 pm Post subject: Re: Advice needed: tiny spots on brand new lens |
|
|
Nikos wrote:
| FluffPuppy wrote: |
Not sure what it is, but obviously take it back if it trouble you, then get a Leica lens next time. |
I would get a Leica M9 if the sensor performance was not disappointing  |
|
| Back to top |
|
|
kryss
Joined: 13 Sep 2009
Posts: 2169
Location: Canada
Expire: 2017-09-18
|
| Posted: Sat Jan 21, 2012 6:06 pm Post subject: |
|
|
kryss wrote:
Bullseye Nikos. |
|
| Back to top |
|
|
FluffPuppy
Joined: 11 Dec 2011
Posts: 365
|
| Posted: Sat Jan 21, 2012 6:22 pm Post subject: Re: Advice needed: tiny spots on brand new lens |
|
|
FluffPuppy wrote:
| Nikos wrote: |
| FluffPuppy wrote: |
Not sure what it is, but obviously take it back if it trouble you, then get a Leica lens next time. |
I would get a Leica M9 if the sensor performance was not disappointing |
Use film, it's better in every way. |
|
| Back to top |
|
|
Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
|
| Posted: Sat Jan 21, 2012 6:25 pm Post subject: |
|
|
Attila wrote:
Try to light throw with led torch and examine with magnifier, you must see it well in indoor too. In case of you I take it back to shop and ask replace or discount. If you ever want to sell it , people will buy it for less due spots no matter it is not effect IQ , it is effect current value just same like sign of trace on tube.
_________________
-------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
|
|
| Back to top |
|
|
FluffPuppy
Joined: 11 Dec 2011
Posts: 365
|
| Posted: Sat Jan 21, 2012 7:25 pm Post subject: |
|
|
FluffPuppy wrote:
If it is on the surface try a gentle cleaning; if within, return it. |
|
| Back to top |
|
|
Nikos
Joined: 17 May 2010
Posts: 1077
Location: Greece
Expire: 2015-01-02
|
| Posted: Sat Jan 21, 2012 7:29 pm Post subject: |
|
|
Nikos wrote:
Yes resale value is important.
In your experience Attila, do you think the spots will start to multiply with time?
I will drop an email to Zeiss, since I bought the lens directly from them online.
| FluffPuppy wrote: |
| If it is on the surface try a gentle cleaning; if within, return it. |
I tried a gentle cleaning, of course. No luck. |
|
| Back to top |
|
|
Kram
Joined: 06 Feb 2010
Posts: 1344
Location: Portland, OR
|
| Posted: Sat Jan 21, 2012 7:59 pm Post subject: |
|
|
Kram wrote:
Why not just return it for another one. That way your mind will be at ease. |
|
| Back to top |
|
|
Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
|
| Posted: Sat Jan 21, 2012 9:16 pm Post subject: |
|
|
Attila wrote:
| Kram wrote: |
| Why not just return it for another one. That way your mind will be at ease. |
+1
depend how you store it and what kind of spot, even if fungus start due lens was stored in dark and humid place if you store it properly it will not change.
_________________
-------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
|
|
| Back to top |
|
|
FluffPuppy
Joined: 11 Dec 2011
Posts: 365
|
| Posted: Sat Jan 21, 2012 9:32 pm Post subject: Re: Advice needed: tiny spots on brand new lens |
|
|
FluffPuppy wrote:
| Nikos wrote: |
Today I had a chance (at last!) to go out and shoot in daylight.
I noticed my brand new Zeiss C Biogon 21mm has two tiny spots near the edge of the front element.
It seems there is an issue with its coating.
Getting back home, I could not see these spots indoors, even with a lot of artificial light.
One has to look at a certain angle and with lots of daylight to see these spots.
Apparently, they do not affect image quality.
But what if it gets worse in the future?
I guess Zeiss will be more willing to accept the fact 15 days after the purchase date, than a year later.
Is the peeling of the coating covered by the guarantee?
What would you do? |
Where exactly is it? |
|
| Back to top |
|
|
M. Valdemar
Joined: 14 Nov 2008
Posts: 93
|
| Posted: Sat Jan 21, 2012 10:56 pm Post subject: |
|
|
M. Valdemar wrote:
You could scratch a lens with a nail and it would not affect image quality at all.
Unless you think the "spots" will damage the resale value of the lens, just forget it. Personally, I never go crazy looking through lenses with flashlights for dust, looking for spots with a microscope, etc.
If you don't have peace of mind about it, just return it for a new one, and be done with it.
PS: Your lens does not have an "issue", it has a "problem". The word "issue" is drastically misused in modern times. |
|
| Back to top |
|
|
visualopsins
Joined: 05 Mar 2009
Posts: 11027
Location: California
Expire: 2025-04-11
|
| Posted: Sat Jan 21, 2012 11:07 pm Post subject: |
|
|
visualopsins wrote:
Nothing else to add; only questions to satisfy curiosity. 
How big is tiny? Circular? Random or regular distribution? Colored? Surely they can be seen using a strong torch light -- examine using magnifying glass to see coating defect, damage, or foreign matter.
Image effects can sometimes be seen with sun just out of frame -- position sun at same angle as spots are angled from center of lens when on camera, try to get some flaring...
The other place to look is to pixel peep at highlight bokeh -- near outer ring any spots?
Another option is ask for a discount.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
|
|
| Back to top |
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Search
Memberlist
Register
Profile
Log in to check your private messages
Log in
