How difficult is it to gain access to the inside of the fron

Sell it as it is, not dusty AND bubba'd

>>2999122
Two questions
>how much are you trying to sell it for?
and
>does the inside element wiggle a bit? Mine does, it doesn't affect image quality, but it does concern me a bit.

>>2999122
>circular specks
Sounds like fungus

>>2999122
I'll give you $400 for it.

File: dustnshit.jpg (288KB, 1600x1067px) Image search: [Google]

288KB, 1600x1067px

>>2999218
ya think?

>>2999228
Even after seeing this?

Btw, the crescent moon-looking circles are just reflects caused by the inside elements.

[EXIF data available. Click here to show/hide.]

Camera-Specific Properties:
Equipment Make	Canon
Camera Model	Canon EOS 5D Mark IV
Camera Software	Adobe Photoshop CC 2015 (Windows)
Maximum Lens Aperture	f/2.8
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Vertical Resolution	200 dpi
Image Created	2017:01:10 00:09:34
Exposure Time	1/100 sec
F-Number	f/3.2
Exposure Program	Manual
ISO Speed Rating	800
Lens Aperture	f/3.2
Exposure Bias	0 EV
Metering Mode	Pattern
Flash	No Flash, Compulsory
Focal Length	70.00 mm
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>>2999206
$600 now, but I'll probably lower it again soon. I finally got one hit, but the person is really unsure because of the dust. And no, no wiggle.

>>2999264

Tbh just get what you can, how did you let it get this dusty?

>>2999259
Definitely fungus. The MkI is the archetype of the dust pump, and with dust you also get spores inside.
Send it in for someone competent to clean it, it might be still salvageable.

>>2999259
until it gets full on hazy, it will still take nice images.
even full haze, you'll only lose contrast.

>>2999259
>>2999122

Keep it seperate from your other lenses, but use it until it gets hazey then throw it away.

Don't sell it, someone who doesn't know better will put it with their other lenses and infect them all.

>>2999467
This is bullshit. Spores are everywhere anyways. If all your lenses are getting fungus, it's because the environment you are storing it in itself (warm, humid, dark), not because the neighbouring lens gave it aids.

File: dissasembly.jpg (89KB, 623x541px) Image search: [Google]

89KB, 623x541px

>>2999386
From normal use. Photography is my career. Several months ago I upgraded to the Mark II version, and this has been sitting in storage ever since, which probably led to the fungus growth.
>>2999440
There is one local repair shop that I'm going to call, otherwise I'm going to clean it myself. It's easy enough to disassemble it to where you see it in the picture. And it seems like there's just a few more screws holding the front element in place, but unfortunately that's where the article on disassembling this lens ends.

[EXIF data available. Click here to show/hide.]

Camera-Specific Properties:
Camera Software	Adobe Photoshop CC 2015 (Windows)
Image-Specific Properties:
Image Orientation	Top, Left-Hand
Horizontal Resolution	72 dpi
Vertical Resolution	72 dpi
Image Created	2017:01:10 18:52:58
Color Space Information	sRGB
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Image Height	541

>>2999489

>lets store this lens full of growing fungus spores in an enclosed space next to this other lens full of fungus food (dust)

What could possibly go wrong?