- Joined
- Sep 5, 2021
- Messages
- 67
I apologise in advance for a very dry thread but I really hope someone can help me with this.
Not long ago I bought a Graflex Crown Graphic Special. It is mounted with a Kodak Ektar 203mm f7.7 lens.
My goal is to add diopters/close up lenses either directly onto the existing lens or via stepper adapters (as I have a good set of diopters which are 67mm)
I have tried various threads in order to track this information down, namely:
1 - https://www.largeformatphotography....315-Filter-size-for-threaded-Ektar-203mm-lens
2 - https://www.largeformatphotography.info/forum/showthread.php?100145-Ektar-203-filter-thread-size
The advice varies and seems to imply that the lens in the UK might differ from a US version (plus I don't know which mine is). Also that this lens takes push on filters and that the thread size is metric. Although I cannot verify this.
My stepper adapters start at 37mm. I bought a 35mm > 37mm as well as 35.5mm > 37mm. Neither of these fit the Ektar lens (both are larger)
So then I bought a Kodak Close up lens (I was sure this said size 370 which is on the lens but actually rechecking it says size 320). This does not fit.
Then I purchased Series V - VII adapters. These also do not fit.
Luckily none of this has cost me much, but it is frustrating.
Does anyone know the actual thing I need? I guess Kodak close up lens Size 370 would be the next thing to try. But I would still prefer to do this with a stepper.
The lens clearly has a thread on the inside, so this information about push on filters seems not to apply here. Any help greatly appreciated.
Not long ago I bought a Graflex Crown Graphic Special. It is mounted with a Kodak Ektar 203mm f7.7 lens.
My goal is to add diopters/close up lenses either directly onto the existing lens or via stepper adapters (as I have a good set of diopters which are 67mm)
I have tried various threads in order to track this information down, namely:
1 - https://www.largeformatphotography....315-Filter-size-for-threaded-Ektar-203mm-lens
2 - https://www.largeformatphotography.info/forum/showthread.php?100145-Ektar-203-filter-thread-size
The advice varies and seems to imply that the lens in the UK might differ from a US version (plus I don't know which mine is). Also that this lens takes push on filters and that the thread size is metric. Although I cannot verify this.
My stepper adapters start at 37mm. I bought a 35mm > 37mm as well as 35.5mm > 37mm. Neither of these fit the Ektar lens (both are larger)
So then I bought a Kodak Close up lens (I was sure this said size 370 which is on the lens but actually rechecking it says size 320). This does not fit.
Then I purchased Series V - VII adapters. These also do not fit.
Luckily none of this has cost me much, but it is frustrating.
Does anyone know the actual thing I need? I guess Kodak close up lens Size 370 would be the next thing to try. But I would still prefer to do this with a stepper.
The lens clearly has a thread on the inside, so this information about push on filters seems not to apply here. Any help greatly appreciated.
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