Cleaning Tamron SP 60-300

**jawats** · 05-04-2018, 01:33 PM

All,

I have a lovely Tamron 60-300 SP which I really like. It has a slight ring of haze on the inside of the front element. It looks like spider webs around the edges, plus some spots in the middle. Is this fungus? Grease? Both? Coating dissolving? Is it worthwhile to open it and clean under the lens? I use haze removal with this lens, but it is otherwise very sharp.

Let me know what you denizens think. Thank you!

**PJ1** · 05-04-2018, 02:41 PM

"Spider webs" sounds like fungus. The front element may be easy to get at so you can deal with it, but I am no expert there. I have removed a front element on one of my lenses (a Sonnar) to clean off haze but fungus is another matter. I think your Tamron may be similar in terms of the front element being not cemented to other elements.

05-04-2018, 01:33 PM	#1
jawats Site Supporter Join Date: Nov 2017 Photos: Gallery \| Albums Posts: 756	Cleaning Tamron SP 60-300 All, I have a lovely Tamron 60-300 SP which I really like. It has a slight ring of haze on the inside of the front element. It looks like spider webs around the edges, plus some spots in the middle. Is this fungus? Grease? Both? Coating dissolving? Is it worthwhile to open it and clean under the lens? I use haze removal with this lens, but it is otherwise very sharp. Let me know what you denizens think. Thank you!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
For Sale - Sold: Tamron Adaptall-2 SP 60-300mm f/3.8-5.4 (23A) & Tamron Adaptall PKA, PK/A Lens M	plunkstar	Sold Items	2	04-25-2018 02:06 AM
Tamron SP 60-300 f3.8-5.6 or smc-fa 100-300 f4.7-5.8?	malenisjaj	Pentax SLR Lens Discussion	12	02-26-2014 06:14 PM
For Sale - Sold: Tamron SP 70-210mm f/3.5, Tamron SP 28-135mm f/4.0-4.5 28A, Tamron pk/a adapta	hinman	Sold Items	14	05-08-2009 05:35 PM
For Sale - Sold: FS: Tamron SP 300/5.6 close focus (1:3) + Tamron SP 2X TC	aegisphan	Sold Items	3	04-11-2008 08:55 AM

05-04-2018, 02:41 PM	#2
PJ1 Loyal Site Supporter Join Date: Jul 2012 Location: Toowoomba, Australia Photos: Gallery \| Albums Posts: 5,484	"Spider webs" sounds like fungus. The front element may be easy to get at so you can deal with it, but I am no expert there. I have removed a front element on one of my lenses (a Sonnar) to clean off haze but fungus is another matter. I think your Tamron may be similar in terms of the front element being not cemented to other elements.