Ok, Fisher F75 metal detector available as F75 SE, F75 ltd, F75 Ltd2, and F75+
The original F75 was the F75 SE (special Edition) and then F75 LTD (ltd Edition). The " first " special Edition was , a basic edition ,and later an American one with special camouflage paint scheme was available for a limited time only, and I think there were only 500 made then. It is also referred to as the F75 Camo but that also had a boost & cache mode .
The F75 Camo detector had a few EMI ( electro magnetic interference ) issues with it I believe.
Next The ( SE )Special Edition is basically the same model ,but later decked in an all black paint scheme and these models were fitted with a faster processor .It also had Boost mode.
All " Standard" base unit F75 models can be distinguished by the rod assembly having a black and gold colour scheme.The Latest ones are fitted with the DST mode as now std.
The All Black LE models have " Limited edition " on a banner on the Arm Cup.This model has Boost and Cache mode on board.
The 2014 up versions of the F75 and the Limited Edition have a new feature called Digital Shielding Technology (DST) which basically is just filtering applied to reduce the perception of electrical interference. Because of concerns that it might come at a performance cost, the feature can be disengaged if desired.
The new models also feature a new " FA " search mode that enables faster target recovery times, allowing two adjacent items to be better discerned as separate targets.The F75 LE(Limited edition )is in all Black colours and this has Boost and Cache modes,and the later models come with DST ( Digital Shielding Technology ) as std .Also other audio options were added, most important being the ability to adjust the volume of the ferrous tone response. This is desirable in areas thick with ferrous trash where the constant barrage of sound can be tiring.
The ferrous tone volume can be reduced to minimum independent of the non-ferrous response, which stays loud and clear. The version of the F75 Ltd with DST is referred to as the F75 Ltd 2.
Fisher introduced yet another new configuration in 2018 - the F75+.
All this is ,is a Fisher F75 Ltd2 sold with a pinpointer instead of the 5" accessory coil and at a lower price.
To confuse things even more it was rumoured that Fisher started pushing out some Special edition models in Black and gold colours which confused the heck out of everybody as to exactly what model did they actually have .
but I`ve " attempted " to give you some idea as to which models are what but even I can get muddled some times by the wide variety of models it really does become confusing , I`ve had to re edit this post a few times . )
You have the same model F75 as I use Bob.