I recently bought a 120mm Super Topcor lens for my Horseman FA. Until then, I had been using a 180mm lens inherited from my old Arca.
With the 120mm lens focused to infinity, the bottom of the bellows enters either the bottom or top of the frame. This is visible on both the ground glass and on negatives.
The bellows leave the frame as they are extended beyond the infinity focus point. Whether the bellows enter the top of the frame isn't consistent.
The issue isn't present when using the 180mm lens, presumably because the bellows are extended further even at the infinity focus point.
I can correct for this error using movements, but it's not an ideal solution.
A few questions:
- For the avoidance of doubt, I assume I'm not missing something fundamentally obvious with this lens? Are bag bellows required for this lens as it is relatively wide? I can't imagine that's the case but thought I should check
- Assuming it is an issue with degraded bellows, can anyone share a good resource outlining bellows refurbishment? The bellows are in mostly good condition bar a few very small pinpricks at the folds. I have repaired leaky bellows successfully but have never embarked on 'structural' refurbishment
- If the bellows are deemed beyond repair, does anyone have any experience or feedback on bellows sold by either 'jameshurleygroup' or the various Chinese vendors on eBay?
- Finally, any guidance or tutorials on how to replace bellows on a Horseman field camera would be helpful. I'm sure I could work it out but it's always nice to learn from the mistakes made by others!
I have included a screengrab of the issue from a rough scan. Please ignore the light leaks those were caused by leaky arms on a cheap changing bag!
The image of the rear of the camera shows the bellows when folded/stored.
Many thanks in advance.
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