Choose the problem you are trying to solve, then confirm your exact product codes in the official references.
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Showing 18 of 90 published records. For all pages, use the site-wide search.
Nikon FTZ vs FTZ IIBoth are Nikon F-to-Z adapters. Nikon describes FTZ II as a streamlined body without the original adapter's tripod foot.→Nikon AF-D, AF-S and AF-P on FTZThe AF designation matters: Nikon lists full AF/AE for specific AF-S, AF-P and AF-I classes through FTZ II, not every F lens.→Sony LA-EA1 through LA-EA5: which one?Sony's adapters differ in focusing mechanisms and camera support. LA-EA5 still has body-specific still AF and no movie AF.→When to enable Shoot Without LensA passive manual adapter may not signal lens presence to a camera. Some bodies require a menu setting before the shutter fires.→Why an adapted lens aperture does not moveAperture control needs a mechanical lever, lens ring or electronic protocol appropriate to that lens. A simple metal adapter cannot create missing electronics.→Camera does not recognize an adapted lensA missing electronic handshake can be normal for a manual lens, while dirty contacts or outdated firmware may cause a genuine fault.→Why an adapter misses infinity focusInfinity focus depends on register distance and adapter thickness as well as lens condition. A physically attached lens can still focus short of infinity.→Why flange distance alone does not prove fitRegister distance is one geometry input. Rear-element clearance, aperture controls and electronics may still prevent safe or useful operation.→How optical adapters can change field of viewAn adapter with glass may alter magnification and effective aperture. A hollow mechanical adapter normally does not do that by itself.→Why you should never force a vintage lens mountOlder lens projections and accessories can interfere with a modern body or adapter. Nikon publishes specific items that cannot be mounted.→Risks of stacking two mount adaptersTwo adapters compound tolerance and clearance uncertainty. A plausible mount chain is not a documented camera-lens compatibility route.→Buying a used mount adapterA listing may omit the adapter revision, contacts, firmware or missing filter insert. Model identification matters more than a generic description.→Using an APS-C lens on a full-frame cameraAn APS-C lens may mount yet cover a smaller recording area. Canon specifies automatic cropping for the RF-S18-45mm on supported full-frame EOS R bodies.→Does crop mode change focal length?Crop mode records a smaller sensor area and narrows the field of view. It does not physically change the lens focal length printed on the barrel.→Why EF-S and RF-S are not interchangeable labelsEF-S is an SLR lens family while RF-S belongs to EOS R. Both may cover APS-C, but their physical attachment routes differ.→Using a full-frame lens on an APS-C bodyA full-frame image circle generally covers the smaller sensor, but the field of view becomes narrower for a given focal length.→Understanding Micro Four Thirds equivalent viewThe Micro Four Thirds standards body explains that its diagonal is about half the 35 mm frame diagonal. Equivalent view is a comparison, not a focal-length change.→Image circle and dark corners explainedA lens projects a circular image; if the active sensor area extends beyond it, corners can darken. Cropping can avoid this at a resolution cost.→
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