Leonard Shepherd

1/ You get the same fps but the buffer slows after 17 shots instead of 21 with 14 bit. 2/ Is there a significant AF problem to fix? I have looked at 137 images on this forum, none using an AF...

Adobe rip off European customers - the street price is at least £560 after taxes. It looks like the subscription is $19.99 a month. That works out at £UK £540 for3 years - bet the offer gets...

As the mark is in a flare area caused in part by a lens element it might be on the lens. Not all circles are "oil" - they can be condensed droplets of water after changing lenses in damp...

The "minor" issue is this target is symmetrical which your D3s instructions caution can cause focus error. The more important detail is some older lenses do not focus accurate at all focus and zoom...

A single horizontal line can be close to useless for calibration :) It is about 6 years since Chuck Westfall, the number one at Canon USA, went on the record saying this particular type of target...

Page 100 of your D800 instruction book explains fine detail subjects (which might include text on paper) can cause focus error. To do an exact comparison the 50mm should have been further away from...

I am intrigued by the lack of user replies! I cannot directly answer your question as I do not have your lens. I do use all three current Nikon converters on the 200-400, also f4, for...

Having just looked at the Adobe web site - in the UK it could be a good deal!
After taxes we pay around £575 for PhotoShop.
It seems I can order from USA at $19.99 a month $240 a year about £180 UK...

You ideally want a product Nikon do not make now. There is no question the D7100 has as good AF as the D600 and is beaten only a little by the D800 and D4.  The D7100 with 1.3x option gets you...

You did start by saying "I can understand the problem will show itself more in fast lenses due to the shallower DoF in my opinion, but why the wide angle lenses?" :) On a detail auto focus takes...

Can you be a little more specific please? Are you are saying you can only get sharp pictures with a wide range of subjects at 10 to 14 feet with an adjustment of 20? If yes and your other lenses do...

There are supposed to be forum rules! Which post are you referring to? The first post starts with "Anyone know why ALL my lenses give a significantly worse performance in the D800 DX mode than in...

If you get a camera, either new or refurbished, which is not perfect, you either get your money back or exchange it for another one without paying a re-stocking fee :)

There are 2 likely causes. The first is that what is it detected at the autofocus sensor is depth of focus, which is not the same as depth of field. With faster lenses the image characteristics at...

Lets look at the 3 images - and page 93 of your D7000 instruction book. Image 1 looks a good AF target. Image 2 if you aimed AF in the middle of the face page 93 explains it is a subject where AF...

Why do you ask if a filter costing less than $10 si good enough for a lens costing over $1,500? Although not about a  pol nikon caution cheap filters can give cheap results...

IF it needs  -20 there is something seriously wrong and you should exchange it. LensAlign falls short of Nikon's guidance for good AF results and some do not vary focus distance with focal length...

If you read previous threads you will see DSLR's have built in UV filtration, Nikon tell you cheap filters can seriously degrade results, good filters can degrade image quality, clear "digital era"...

The problem seems to be a lack of understanding as to the limitations of AF assist rather than a camera or flash fault. AF assist works by projecting relatively wide spaced vertical beams of light...

The instructions for the D300s and D800 caution fine detail subjects like the one you used for the comparison can cause focus error. It seems clear the D800 mis focussed - making your comparison of...