{"product_id":"kestrel-2x-teleconverter-lens-m42-mount-vintage-tested","title":"Kestrel 2× Teleconverter – M42 Mount – Vintage Manual Focus – Tested – VGC","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eDESCRIPTION\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eKestrel \u003cstrong\u003e2× Teleconverter\u003c\/strong\u003e for \u003cstrong\u003eM42 mount\u003c\/strong\u003e, in \u003cstrong\u003eVery Good condition\u003c\/strong\u003e and fully \u003cstrong\u003etested and working\u003c\/strong\u003e. A classic vintage accessory designed to double the focal length of any compatible M42 lens while maintaining a compact, lightweight setup.\u003c\/p\u003e\n\u003cp\u003eA clean, functional example suitable for film users and digital photographers adapting M42 lenses.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eCONDITION\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eOverall Condition: Very Good\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFully tested and working\u003c\/li\u003e\n\u003cli\u003eOptics clean with no haze or fungus\u003c\/li\u003e\n\u003cli\u003eNo separation\u003c\/li\u003e\n\u003cli\u003eLight internal dust only (typical for age)\u003c\/li\u003e\n\u003cli\u003eCoatings intact\u003c\/li\u003e\n\u003cli\u003eMount threads clean and smooth\u003c\/li\u003e\n\u003cli\u003eExterior shows light cosmetic wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eINCLUDED\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eKestrel 2× Teleconverter (M42 mount)\u003c\/li\u003e\n\u003cli\u003eFront cap\u003c\/li\u003e\n\u003cli\u003eRear cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eKEY FEATURES\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2× magnification for extended telephoto reach\u003c\/li\u003e\n\u003cli\u003eM42 screw‑mount compatibility\u003c\/li\u003e\n\u003cli\u003eSolid metal construction\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight\u003c\/li\u003e\n\u003cli\u003eSimple, reliable optical design\u003c\/li\u003e\n\u003cli\u003eIdeal for experimenting with longer focal lengths\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eCOMPATIBILITY\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAll \u003cstrong\u003eM42‑mount\u003c\/strong\u003e lenses (Helios, Takumar, Pentacon, CZJ, Chinon, etc.)\u003c\/li\u003e\n\u003cli\u003eAll \u003cstrong\u003eM42‑mount\u003c\/strong\u003e film bodies (Pentax Spotmatic, Praktica, Fujica, Zenit, etc.)\u003c\/li\u003e\n\u003cli\u003eAdapts easily to mirrorless systems (Sony E, Fuji X, Canon RF, Nikon Z, etc.)\u003c\/li\u003e\n\u003cli\u003eAdaptable to DSLR systems with appropriate M42 adapters (body‑dependent limitations)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eCOLLECTORS \/ USERS NOTES\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eKestrel teleconverters were typical of the well‑built third‑party accessories of the manual‑focus era. Their simple optical design makes them a practical way to explore longer focal lengths without investing in larger telephoto lenses.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSEO KEYWORDS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eKestrel 2× teleconverter, M42 teleconverter, vintage M42 accessory, 2× converter M42 UK\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Panagor","offers":[{"title":"Default Title","offer_id":54161334927702,"sku":null,"price":5.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0875\/5213\/1414\/files\/IMGP9979_536d2655-432b-479e-82a1-4e27d4985982.jpg?v=1781164134","url":"https:\/\/colinscameras.co.uk\/products\/kestrel-2x-teleconverter-lens-m42-mount-vintage-tested","provider":"Colins Cameras","version":"1.0","type":"link"}