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D70i focus convensation
billitone
Hi all.

I really want to ask, esp. those who have converted their D70 to D70i, if the focusing can be a real pain when taking pictures? I mean how big is the different from normal D70?

Thinking of converting my D70 but have to think twice (if not hundred times...) because of the focusing issue.


TIA,
billitone.
billitone
ok la...wanna take the plunge icon_hun.gif
where can I get a glass cutter to cut my R72, can not seem to find it.

anyone can help me cutting it? naughty0.gif
quekky
QUOTE (billitone @ Dec 23 2005, 12:29 PM)
ok la...wanna take the plunge icon_hun.gif
where can I get a glass cutter to cut my R72, can not seem to find it.

anyone can help me cutting it? naughty0.gif

naughty0.gif naughty0.gif


careful with the cable inside hor, i learnt an expensive lesson
ark19
QUOTE (billitone @ Dec 23 2005, 12:29 PM)
ok la...wanna take the plunge icon_hun.gif
where can I get a glass cutter to cut my R72, can not seem to find it.

anyone can help me cutting it? naughty0.gif

Glass cutters can be found in most hardware stores or those DIY stores.
If I'm not wrong, Deadpixel cut the filter with excess, then ask/pay a shop to grind it to exact size.
Good luck sweating.gif Keep a shot of vodka handy shutup00.gif
quekky
Deadpixel grind the glass himself. actually the size no need so accurate
deadpixel
It's not difficult. whistlin.gif

All you need is a SG$7 carbite cutter available from any DIY shop, a steel rule, a small bottle of machine oil (the type for your grandma's sewing machine), some thin paper to place between the filter and ruler, some common silicon carbite sandpaper in fine and course grades (also available from all DIY shops) and a few sheets of waste glass for practice.

Steps:

1. Draw an outline of the IRC/AA filter you're gonna replace on the IR filter of your choice, use a very fine, waterbased CD/DVD marker. The measurements can be found here: http://www.irphotography.org/index.ir?showtopic=248

2. Place a piece of paper between your ruler and filter, oil the line to be cut WITH A GENEROUS AMOUNT OF OIL and cut the filter using firm and consistant preasure. You don't need a lot of strength. You should hear a sound like the ripping of cloth. Start and stop about 2-3mm from each edge.

3. Holding the filter in your hands with the cut line in between both hands, gently "snap" the filter back. It will break cleanly along the line.

4. DO NOT WIPE THE FILTER AFTER EACH CUT, INSTEAD, RINSE IT GENTLY WITH SOAP AND WATER. THIS PREVENTS THE TINY GLASS FRAGMENTS FROM SCRATCHING THE FILTER.

5. Repeat steps 2 to 4 for each edge.

6. When done, you'll find that the filter will be a little longer and wider than necessary. Just grind it down, first with the course sandpaper than with the fine. Be sure to put lots of water on the sandpaper.

That's it. wink.gif


Tips
a. Practice, practice, practice...look around for waste glass to practice cutting on, make sure it's not tampered glass

b. When cutting, be sure to apply a firm, even preasure. When done correctly, you WILL hear a sound like cloth ripping.

c. Always use lots of oil and always clean up after each cut. This will help you avoid unwanted scratches.

d. When snapping the filter at the cut point, use your hands or a pair of padded pliers. NEVER use the notches on the cutter itself.

Cheers,

Matt
ark19
Alamak, like that not grind lah hammer00.gif
Correct term is "sand" wallbash.gif
Btw, if you need to wet the sandpaper, do get the water-proof sandpapers.
I think the 3m ones cost around 50 cents per piece.
billitone
thanks guys for the tips...sweating.gif

now practising only...while thinking whether I should just order the glass from lifepixel.net as they claim that no focus adjustment needed when using their glass..... icon_hun.gif
deadpixel
QUOTE (billitone @ Dec 27 2005, 04:20 PM)
thanks guys for the tips...sweating.gif

now practising only...while thinking whether I should just order the glass from lifepixel.net as they claim that no focus adjustment needed when using their glass..... icon_hun.gif

Hmmm... blur0000.gif

I'm not too sure about the "no focus adjustment needed" part...

Before the revamping of their website, there was a part where they said they would calibrate your camera's autofocus to be good with lenses of f/2.8 and above. Now there does not seem to be any mention of this.

Considering that the focul point of NIRL is different from VL I believe that some form of adjustment is still necessary.

Cheers,

Matt
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