N°93386 · Family detail
PromasterMacro·PENTAX K mount
Promaster Spectrum7 100-300mm F/5.6-6.7 MC Tele Macro
Specifications01
Summary02
Promaster Spectrum7 is a Pentax K-mount 100–300mm zoom telephoto lens with a variable maximum aperture around f/5.6–6.7. Labeled as a tele macro lens for close-up work at the long end.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Pentax K mount has a flange distance of 45.46 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Pentax DA and FA J lenses have no aperture ring. Use an adapter with its own aperture control.
- Pentax DA lenses are made for APS-C.
- Sony EAdapter · 27.46 mm
- Canon RFAdapter · 25.46 mm
- Nikon ZAdapter · 29.46 mm
- Fujifilm XAdapter · 27.76 mm
- L-MountAdapter · 25.46 mm
- Micro Four ThirdsAdapter · 26.21 mm
- Fujifilm G (GFX)Adapter · 18.76 mm
- Canon EF-MAdapter · 27.46 mm
- Canon EFAdapter · 1.46 mm
A rear element that sticks out can hit the camera mirror.
No plain adapter reaches infinity focus on: Nikon F.
Other Mounts03
This lens family is also indexed in 5 other mounts.
CANON EFView lens
Promaster Spectrum7 100-300mm F/5.6-6.7 MC Tele Macro
CANON EF-SView lens
Promaster Spectrum7 100-300mm F/5.6-6.7 MC Tele Macro
MINOLTA/SONY AView lens
Promaster Spectrum7 100-300mm F/5.6-6.7 MC Tele Macro
NIKON FView lens
Promaster Spectrum7 100-300mm F/5.6-6.7 MC Tele Macro
NIKON F DXView lens
Promaster Spectrum7 100-300mm F/5.6-6.7 MC Tele Macro