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Re: Olympus serial number timeline
Posted: Mon Oct 09, 2023 6:58 am
by jayjay
- Olympus serial number timeline Mixed models F MF H & PM camera adapter_091023.JPG (89.24 KiB) Viewed 4134 times
- Olympus serial number timeline 10X 40X 100X objectives_091023.JPG (118.38 KiB) Viewed 4134 times
- Olympus serial number timeline 4X 20X 60X objectives_091023.JPG (91.18 KiB) Viewed 4134 times
Re: Olympus serial number timeline
Posted: Mon Oct 09, 2023 4:46 pm
by PeteM
Thank you for the work you've put into this.
Re: Olympus serial number timeline
Posted: Tue Oct 10, 2023 12:11 am
by jayjay
Thanks Pete - I hope the timelines are proving useful to readers, they have helped me date my collection. Plus I enjoy watching the timelines develop.
I have more data on old objectives (pre-1953) and different objective types that I'll post once I receive more information.
Re: Olympus serial number timeline
Posted: Tue Dec 12, 2023 9:47 am
by jayjay
Re: Olympus serial number timeline
Posted: Tue Dec 12, 2023 9:49 am
by jayjay
- Olympus serial number timeline Models 10X & 40X objectives_121223.JPG (125.93 KiB) Viewed 3500 times
- Olympus serial number timeline Models 4X & 100X objectives_121223.JPG (115.55 KiB) Viewed 3498 times
- Olympus serial number timeline Models 20X & 60X objectives_121223.JPG (91.87 KiB) Viewed 3500 times
Re: Olympus serial number timeline
Posted: Wed Apr 10, 2024 10:42 am
by jayjay
Re: Olympus serial number timeline
Posted: Wed Apr 10, 2024 12:14 pm
by MichaelG.
Thanks for this magnificent work, jayjay
May I make your life a little more difficult … by mentioning my recently acquired IMT-2
This [
assuming that the 4 is slightly mis-struck] very clearly bears the Serial No.
405001 
MichaelG.
.
.
Re: Olympus serial number timeline
Posted: Wed Apr 10, 2024 9:10 pm
by jayjay
Thanks Michael - IMT looks an impressive mode, enjoy! I wouldn’t be surprised if Olympus started the numbering at 400,000 for the IMT, so you likely have unit 5001. My data suggests they did that for some of the later objective types, but I’m waiting for more info to trickle in to confirm.