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I'm looking to learn how to fully clean/repair lenses more than simply puffing with a blower and wiping with a cloth... I have a bunch of old P entax SMC lenses that I don't mind pulling apart (two of them have a little fungus) and want to use them to practice repairing old manual primes. Unfortunately I can't find much online, nor any books on the topic. I have even tried to find information on specific lenses (Pentax, Nikkor etc.) but still nothing detailed. So essentially I am asking if anyone knows of books/websites etc. here I might be able to learn anything related to pulling lenses apart, cleaning/repairing them, and putting them back together again (all stages being vital!). I understand that this is as much a science as a skill, with precision and math being vital... but surely the talented folks repairing lenses haven't all learnt through apprenticeship? I've been pulling apart and re-assembling things since I was a kid (to various degrees of success), and sooner or later I'm just going to dive in... so please educate me before I make a mess!

I know everyone's flipping out about RAW right now, but I thought I would submit my latest real-world work: MTV True Life, I'm Starting a Business with Friends.  I shot this whole episode on Sony Rx100's.   I wrote a detailed blog post about my shooting and editing techniques. Will post a link to video as soon as MTV releases it.  Until then, enjoy the blog!   http://rungunshoot.com/how-i-made-an-mtv-reality-show-with-two-pocket-cameras-and-a-macbook/  

Hello everyone. Currently i developing a little DIY project and have an idea to implement Sony E-Mount to be able attach various adaptors for lens testing. E-Mount has short flange distance, its diameter big enough to fit any lens and there are tons of inexpensive lens adaptors on ebay. But as so as it don't use clamping nut as pl-mount, IMS or b4-mount, i'm not sure how durable, rugged and precise this mount appears to be. I would like to to hear your personal opinion regarding usage of this mount in real life... Thanks!

http://www.indiegogo.com/projects/frankencam-diy-raw-video-camera-prototype Please take a look! It only started today! With thanks, Jarrett

Hi everybody! This's my first post on EOSHD, I'm very happy! My name 's Brice Rudelli filmmaker of south France. I work on a accesories line for dslr like GH2, rig, dolly, jib crane and others... I present to you my first test of ultra light jib crane, it's just a prototype. Heavy 14 pounds with the GH2 and lense. [img]https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-ash4/313980_10151054706374887_1054247970_n.jpg[/img] Video test: [media]http://www.youtube.com/watch?v=DVrKn0XBzyg[/media] I crop for looks and put a little bit of stabilisation because I shot without external monitor. The GH2 's no hacked. Put just color grading with MB Thanks for watching If you want more information you can go on my website for contact me. [url="http://www.pictureyourarttoo.com"]http://www.pictureyourarttoo.com[/url]

Hi everyone, I've been using the iFocus from Gini Rigs for a couple of weeks now and I just thought I had to share my opinion about using it. First of all, it's a nice follow focus, it's got hardly noticeable backlash and offers smooth focusing. The main disadvantage in my opinion is its size. It's really big and looks somewhat silly on my GH2 rig, but it does the job right when used properly. So how to get the most out of it? Well, out of the box, it has it's focusgear on the right side, closest to your camera, which is very common for follow focuses. But due to it's size, it will get in the FOV of (smaller) wide angle M43 lenses (<14mm). It also won't allow the use of sunhoods, because of the small space between the gearbox and gear, the gearbox will hit the hood before the focusgear can slip into lensgear. [attachment=300:000.jpg] So the first thing I did was switching the gear from the right to the left side. You'll just need two small hex keys (I think its 2 and 3mm) to do this. [attachment=301:001.jpg] [attachment=302:002.jpg] But after this, the follow focus will block the view of the FL and DOF markings on the lens, and will make it harder to adjust aperture when having a manual aperture ring. [attachment=303:003.jpg] To solve this little problem I attached the 15mm connecter to the other side of the rig, so a large part of the FF will be under the lens. You can rotate the gearbox, so the wheel will be vertical again. [attachment=304:004.jpg] So this is my opinion on using this follow focus, just thought to share it with you. Any tips or recommendations are welcome.