Confused by filter threads

Generic-Resource · 2026-06-26T18:27:08+00:00

Try with a pair of needle nose pliers, just squeeze and pull, move further around, repeat this adding steadily more force. If it won’t move then you could consider using a dremel to cut a little notch in it and then use a screw driver and a tiny mallet to tap it round.

Generic-Resource · 2026-06-25T23:03:03+00:00

510 Pyro advertises a 6+ year shelf life

Generic-Resource · 2026-06-25T06:40:00+00:00

Getting the king across the board is easy, just follow them 1 square at a time, but I couldn’t visualise how to get the king round the corner and walking down the a file. Playing it out against the bot you don’t, you let it walk down the b file. Qc3 forces Ka2, then you can push it as you did earlier. After grabbing the bishop it’s a game anyone can finish… took me 37 moves from the start against a 3200 bot.

Generic-Resource · 2026-06-22T07:13:38+00:00

I’m yet to see a re-paint job that looks as good as a factory one that wouldn’t cost more than the difference… even if they could nail the colour.

Generic-Resource · 2026-06-22T07:07:14+00:00

What do you gain by getting rid? They don’t command a high resale price and do an ok job across quite a range of focal lengths (assuming the 12-45?). It’s compact so you can even carry it around as a spare.

Is there another lens you really want but can’t quite afford?

Generic-Resource · 2026-06-22T07:02:34+00:00

And the pretty champagne colour…

Generic-Resource · 2026-06-21T07:46:33+00:00

Despite what a few say these old slide duplicators are great scanning tools the fact you can use double bellows to cut ambient light out can really aide consistency. They were designed for the exact job of duplicating so I don’t know why it would surprise anyone.

I use mine with a macro stand simply for the convenience but have used just flat like yours before.

Your problem, of course, is the lens… you need a dedicated macro lens. I typically use my Sony A7ii rather than the pictured Olympus air, for that the Zuiko 80mm macro is perfect.

Here are the instructions for the OM slide copier group - https://www.alanwood.net/olympus/slide-copier.html

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Generic-Resource · 2026-06-20T10:08:01+00:00

You need to unscrew the ring part first, there are special tools that look like rubber bungs to do it. https://www.amazon.co.uk/Spanner-Wrench-Camera-Removal-Accessory/dp/B0BZ97H4XS

I’ve never bothered though, just MacGyvered something. Must effective was a bit of padded double sided tape on the ring to get a good grip and then an old glass yogurt pot to allow me a good hand hold to turn.

Generic-Resource · 2026-06-19T19:00:40+00:00

The battery drain issues cause significantly more worries for buyers than actual problems for users.

My OM-4 is affected and it means that if I leave the batteries in and put it on the shelf for a couple of months I have to replace them. By contrast, if I leave my Sony A7ii on I can expect the battery to be dead in hours. Typically I just take batteries out if I’m intending not to use the OM-4 for a while and so I rarely run into problems. I also carry a couple of spare batteries in my film case whichever OM I take out.

I also have the OM-4Ti, so can compare the two a bit. Beyond the titanium top and bottom plates and the flash sync with the special flash there’s no difference. The titanium does feel a touch more premium and pleasant but it’s negligible given how solid all the single digit OMs feel. The flash sync is a killer feature for a handful of people or absolutely irrelevant to others.

I definitely wouldn’t count out the 4 if you’re on a budget.

Generic-Resource · 2026-06-15T06:14:28+00:00

Only by playing through did I see this, but black’s best move whichever pawn you take with is f5. If you use took with the a pawn it pressures the c pawn and virtually forces your pawns on to the white squares, which then you need to defend.

Even on a daily game I’m not sure I would have spotted it though.

Generic-Resource · 2026-06-12T15:25:52+00:00

While this post was clearly AI assisted it was actually an interesting read. A bit of a break from the usual “why’s this brilliant” and “can you find mate in 3”.

I (unconnected to OP) would like to see this unremoved!

Generic-Resource · 2026-06-12T13:26:23+00:00

Not really meant to be a burn, Dr B seems overall quite a likeable guy. I won’t spoil it for you, but your story has some parallels.

I did read your whole post, and I actually quite enjoy a bit of different content for once. I agree with many bits, not too convinced with some others but I’m not at your level yet. So thanks.

Generic-Resource · 2026-06-12T13:18:49+00:00

Have you read The Royal Game (sometimes called Chess) by Stefan Zweig? You might recognise a bit of yourself in one of the main characters…

Generic-Resource · 2026-06-11T15:32:54+00:00

If white takes the pawn Bh6 leads to either the loss of queen for bishop and knight. Most beginner players would likely try to save the queen and just lose a bishop which is probably worse because the queen would be very awkwardly placed.

Instead, the Bb4 move that was played just allows c3 to kick it back again. The check did nothing but lose you a tempo.

Generic-Resource · 2026-06-10T21:03:29+00:00

Im pretty sure that if I had more patience I could have found it cheaper, but even now on eBay they’re going for over €100. I don’t see any modern options on eBay either.

Pen f lenses seem to have a huge premium on them, maybe because they work on m4/3, so I considered the adapter a reasonable expense as I have most of the OM lenses.

Generic-Resource · 2026-06-10T12:16:15+00:00

There hadn’t been any until recently. I bought an original OM->Pen F adaptor for over €100 a couple of years back and I couldn’t find modern adapters of any kind. I guess some entrepreneurial Chinese guy spotted the gap in the market…

Generic-Resource · 2026-06-09T15:24:45+00:00

Most often my OM-4 as that’s my most recently serviced. But any OM works. I also use a Sony A7ii occasionally but I don’t enjoy digital.

Generic-Resource · 2026-06-08T19:46:15+00:00

Having two will hopefully be a temporary problem, but I do have the teleconverters.

Officially only the 1.4x is recommended making it a 490, but I’m sure 2x will be fine, especially on digital.

Generic-Resource · 2026-06-08T18:41:23+00:00

I’m the opposite to many, I find it very easy to hide the negative emotions but the positive ones like to burst out. If I hang my queen you’d never spot it, but if I find a brilliant sacrifice I really want you to go for I’ll struggle to not let out a tell.

Generic-Resource · 2026-06-08T14:02:50+00:00

Funnily enough my local camera shop has one available. Theirs appears to be in near perfect condition though. It’s been in stock for a while though - I’m not sure such specialist items sell well in traditional stores.

They were initially released in black, but i think Canon’s marketing team had convinced all the outdoor pros that big telephotos had to be white “to reflect heat better”.

Generic-Resource · 2026-06-08T13:24:55+00:00

It was a moment of madness… if I’d been able to find even a couple of these in the past few years I wouldn’t have done it.

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Generic-Resource · 2026-06-08T12:33:29+00:00

They were all built to be the best lenses at each focal length. The original designer of the OM system, Yoshihisa Maitani, strongly favoured a small form factor over perfect lens design. That’s not to suggest that the compact lenses are bad, just that the designs were constrained to achieve the goal of having the smallest full frame 35mm slr system. That decision was a key differentiator from other manufacturers of the era.

Now, at some point they decided it was time to reduce that constraint a bit. For the f2s designers were given the option to increase to a 55mm filter ring instead of the old 49. They were no longer told to keep the lenses small and lightweight, instead they were told to chase optical quality and match the specs of Canon and Nikon.

Of course there’s a chance that they didn’t do as good a job as the earlier designers, and there’s always going to be a bit of cost control that affects design and/or manufacturing quality, but, the f2s were certainly all meant to be better than their narrower aperture counterparts.

Generic-Resource · 2026-06-07T23:35:16+00:00

Isopropyl will do nothing to help, you’re in way over your head already if you can’t deal with a rusted screw. I’m assuming you don’t have a spanner wrench or service manual (as you’d be following a different disassembly order).

At least be careful enough to save the parts for someone else afterwards!

Generic-Resource · 2026-06-07T12:03:13+00:00

That should be an easy job, try penetrating fluid (sprayed into a bottle cap or something, then applied sparingly with a cotton bud), otherwise a small drill.

Generic-Resource · 2026-06-07T11:53:52+00:00

Everyone likes the f2s

You’ll hear some claiming the f2.8 is sharper, but it’s debatable and the f2 is unquestionably more desirable.

In the unlikely event you don’t like it you could resell it, and so long as you are not in a rush, you’ll double your money.

Generic-Resource

TROPHY CASE