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Has anyone converted any R lenses to ROM? Interested to know roughly the cost.

 

Reason for asking is that I've seen some lenses from time-to-time on eBay that are priced more affordably because they lack this capability. But then knowing what to pay for them would require knowing what the upgrade cost would be.

 

thanks in advance

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Guest maddin

I would glady give you the required info plus some advise yet i would rather like to know your real name first. it used to be a polite habbit here and at least i would like to continue it.

 

if you do not like to be found by google use @ $ or other non-letter characters.

 

cheers

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I have done this conversion once in the past, with a Summicron-R 50/2.0 after I had bought an R8 camera. The cost should be around 200 euro if I remember it correctly. Best way to proceed is to send the lens to Solms directly. It may also be cheaper because you cut out the middleman's surcharge.

 

Pascal

http://www.leicapages.com

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Guest user8952

the costs are about 100 EUR per lens, but theactual advatage of ROM is limited. I would rather spend the money on something useful... (like film)

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  • 1 year later...
I thought I'd use this existing thread rather than start a new one.

 

Question - is there a reliable list somewhere of which R lenses can be modified with ROM? Perhaps the list would be shorter if it was the ones that can't be modified.

 

Any clues? Thanks, Rick.

 

Rick

 

There was an article in LFI 7/98 (when the ROMs first appeared) which also listed the lenses which could be ROMmed. I've got a Xerox kindly provided by an Old Forum member. A bit long to list them all - but if you tell me the lenses you're interested (with five digit order number) I can tell you yes or no.

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There was an article in LFI 7/98 (when the ROMs first appeared) which also listed the lenses which could be ROMmed

 

Thanks John. I dug out that edition of LFI and have typed the list below. Insertions by me are in brackets. Rick Dykstra.

 

'The following lenses may be retrofitted with [ROM] electronics'

 

Super Elmar R 3.5/15. 11213

Fisheye Elmarit R 2.8/16. 11222

Elmarit R 2.8/19. 11225, 11258

Super Angulon R 1.4/21. 11813

Elmarit R 2.8/24. 11221, 11257

Elmarit R 2.8/28. 11204, 11247, 11259

Summilux R 1.4/35 . 11143, 11144

Summicron R 2/35. 11115, 11227

Elmarit R 2.8/35. 11101, 11201, 11231, 11251

Summilux R 1.4/50 . 11777, 11875

Summicron R 2/50. 11215, 11216, 11228

Elmarit R 2.8/60. 11205, 11212, 11253

Summilux R 1.4/80 . 11880, 11881

Elmarit R 2.8/90. 11154, 11229, 11239, 11806

[Apo] Macro Elmarit R 2.8/100. 11210

Macro Elmar R 4/100. 11232

Elmarit R 2.8/135. 11211

Apo Summicron R 2/180. 11271

Elmarit R 2.8/180. 11919, 11923

Apo Telyt R 3.4/180. 11242

Elmar 4/180. 11992

Telyt R 4/250. 11920, 11925

Apo Telyt R 2.8/280. 11245

Apo Telyt R 4/280. 11261

Telyt R 4.8/350. 11915

Apo Telyt R 2.8/400. 11260

Vario Apo Elmarit R 2.8/70-180. 11267

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Rick

 

You type more quickly than I do!!!

 

Ha! John, I'm not as quick as some. Bit off more than a mouthful to tell the truth. The formatting was hell. If anyone knows how to make the order numbers line up nicely on a tab, go ahead and fill yer boots! Send me a PM so I can make sure to admire your handywork.

 

Regards, Rick.

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So no 90/2?

 

It shouldn't be a big deal if you really love the lens, LCT ... I assume if Leica is offering backward compatibility generously, they surely will enable stop down metering.

 

Worst case, you could either:

 

1. sell it

2. buy a Canon with a focus confirmation adapter for it. :)

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what is the point of the upgrade?

 

(1) Information to camera on the precise aperture dynamics and values of the individual lens example (every ROM is programmed individually per individual lens). Correct computation of aperture when passed through ROM exuipped 2X extender

 

(2) Focal length information passed to camera for zooming flashguns

 

(3) Lens information passed to camera to enable the DMR to correct vignetting for that particular lens.

 

If one of these are important to you then there is indeed no point in the conversion.

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