The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 35mm F1.8 Di VC USD and the Hartblei 40mm F4 IF TS for their suitability to various photography scenarios:
Size and Weight Comparison
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Tamron 35mm F1.8 Di VC USD weighs 450g, which means it is 1100g (70%) lighter than the Hartblei 40mm F4 IF TS which has a weight of 1550g.
Filter Threads
The Tamron 35mm F1.8 Di VC USD has a filter size of 67mm whereas the Hartblei 40mm F4 IF TS has a 86mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Tamron 35mm F1.8 Di VC USD:
And these are the 86mm filters that we recommend for the Hartblei 40mm F4 IF TS:
Lens Mounts
Both the Tamron 35mm F1.8 Di VC USD and the Hartblei 40mm F4 IF TS has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Tamron 35mm F1.8 Di VC USD is also available in Canon EF and Sony Alpha mounts.
Hartblei 40mm F4 IF TS is also available in Canon EF , Pentax KAF and Sony Alpha mounts.
Focal Range
Tamron 35mm F1.8 Di VC USD is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
52.5mm.
On the other hand, the Hartblei 40mm F4 IF TS is a prime lens with fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 60mm.