Proper adaptation with metal Pentax 6x7 bayonet. Minimal focusing distance 1.2m great for portrait. Firm infinity and bit beyond. Tested: awesome, sharp and contrasty with distinctive bokeh. Satisfaction guaranteed. Camera not included.
Remark: soon after 1m lens unscrews, but this is not an issue since tube long enough and re-screwing is smooth & easy. In fact one can use this feature to come even closer to object.
EU buyers: You don't want to
pay high US$ to EUR conversion fees, let me know and i will relist .de with price in EUR currency.
Please check my other listings .de since they are not visible .com.