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Anyone can download Pana pdf they will see exactly my complaint that by combining models in a .pdf it makes printing wasteful of both paper and ink. Buying the camcorder is unlikely to change this, although you don't say if you were provided with a printed Guide which applies to the one model you bought.
Before we get too complicated ( easy as Pana uses similar model-Nos).... I have this .pdf available: It combines both HD and 4K models...the HD-only models...HC V 800 and HC V 808 - then 4K models: HC WXF1, HC WXF1M, HC VXF1, HC VXF11, HC VX1, HCVX11
Wow! that's eight model-variations in one .pdf
When you state "800" are we to believe you mean the HC V800, or is this a different model? ( It is HD-only )- as listed in the above .pdf
As to saying they are the same sensor - eh? Just because they are the same size and deliver the same stills Mpx ( so how does VXF1 claim 25Mpx?) . . . doesn't mean the sensors are the same ( I mean Identical, =interchangeable) - far more likely they start the same as patterns on the silicon wafers - and have different overlays to achieve different pixel-count. I would expect the 4K version will have more-work and would expect some major variation in the electronics. Advertisers might want to use the term "Same" to suggest they are merely providing more choice.... which they are. But suggesting the sensors are identical raises the spectre that 800-buyers are paying for additional silicon-steps they can't use.
Making semiconductors is a mammoth technical feat and there are many steps from start to finish. In the past, it was common to "grade" the outcome so as much silicon could be used(=sold) as possible. This is common with processors - the ones that pass the fast-tests will sell at a premium; whereas others are downgraded and sold more cheaply to satisfy bulk-buyers. That doesn't means the processors are worse, rather they don't reach the top spec, possibly due to some variation in the processing. To prevent the cheaper chip squeezing out the expensive versions, it would be commercially sensible to introduce some feature that is downgraded - perhaps cache-size - but these are not the same-processors - very nearly the same but testing and processing will make them different. To be sure this doesn't become a buying/fraud nightmare the test-spec is usually included in the chip - so when this is addressed the high/lo spec is made clear. For users there is a slight improvement in performance with the more-expensive chip - otherwise folks would get "wise" to this and buy only the cheaper ones - this is where fraudsters can operate, despite Mfr attempts to thwart this growing undertaking. Made profitable due to the similarity in packaging, which few consumers could test.
We are aware of USB/ Memory frauds, where the memory can report as correct, but only writing large files will show the reality.
If the 800 sensor is the same-size as the VX1, that's where IMHO the similarity ends . . . and I suspect Pana won't provide any detailed manufacture info - Mfrs thrive on secrecy. All is usually covered by confidentiality - who do you think makes their sensors. eh?
ND-filters - these are in the AX700 Sony has this, perhaps at twice the VXF price that's no-longer "Consumer" - but Pro gear tends to start from £4K - and that's sometimes without the lens!
Pana sells the FZ2000 mirrorless DSLR (with ND built-in)....It does movies as well! But it's very odd when a stills photographer can increase their shutter-speed when a shallow DoF is essential... whereas movies are usually fixed at slow speeds to avoid "jitter" on playback. However, finding the FZ2000 details of ND is difficult - you'd think it was a design "fault" . . rather odd, as it is about the same price as the VX series, DMC-FZ 2000~£879 (Az) - - HCV 800 ~ £481 (Az)- - VXF1 ~£699 (Az).
One technical aspect of ND-filters being built-in:- the lenses tend to be 8-iris blades, or more; otherwise bright background defocus can draw attention.
VX1 - I didn't misread the camcorder OP said he was buying - I stated that VXF1 was the one I'd be interested in... - yet I'm waiting for them to add ND filters.
Those complaints re VX in HD-mode . . . I don't recall anyone resolving this - can you post an AVF link? - referring to your HCV800purchase as proof, is not likely to sway me, other than I believe your HCV800 is an excellent HD-camcorder. The extra zoom is worthwhile, too.
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