I've had problems with FF with manual lenses. Maybe its the automatic focus detection thats wrong. But I remember using a split prism chinese screen with a 50mm f1.7 and that also was not accurate (but maybe it was the screen's fault).

The L-PL will cut the light like a ND, but won't mdoulate it like a C-PL (on digital).
Colour filters are pointless, other than to play around (on digital).

If you use film then they can be very useful.

Its wipers, the damn contraption came apart...

Not the tyre, the whole wheel, metal frame, tyre and bolts. Bastards! Who wants a wheel form a Punto, it was magnesium, just a rusting steel one.

Don't buy a Punto.

Since buying in 2001 and not including stuff done for MOT:

Windscreen wipers stop working, while driving in the rain... Apparently a common problem, so much so that Fiat only sells the whole bloody assembly motor included.

Car overheats, problems with the fan, then car doesn't start, not enough juice...
Stuck with battery problems: 5 times, middle of the road: 2 times :

Right front wheel nicked. Seriously... nicked! what is this? A bad suburb in the states... in a movie? Oh, and of course the other tire need replacing as well.

Windscreen wipers dead again. Oh F me... knock off parts for repairs. Less stupid.

Battery actually dies... New battery. Radio goes belly up as well cuz I don't have the codes

Numpty here forgets the car in the parking space past 4:3pm (got out of the Uni at midnight). Car impounded.

Yesterday: Clutch on its death bed, goes out screaming, new installed.

I can't get a break...






On an unrelated note, if you are in the Edinburgh area, I know of a nice car that will be on the market soon. I have it from good source it quite a catch!

It was in the centre focus point.

I'll try a battery of tests to see if I can obtain additional data that may clear up this mystery.

But Lance, if this was the case, and we assume that is provoking the visible differences in focusing, would they be very noticeable at all focusing distances?

I know I have front focusing issues, allways have had.
I used a chinese split prism for a bit, but that also had problems and focus was not spot on.

I have had shots were I focus is off or nothing is in focus, but nothing like this.

I've also had very different problems with FF. I remember for example the Tammy 24-135mm was almost spot on, while the kit lens was way off (45 angle thingy...)

I'm glad I can't make it there (I'd be like a fat kid in a candy shop).
I think a small time handling some of the kit and I'd be leaving with a rental
I need to sell more gear

Just the stock screen.
As I said, the focus scale was far from the 10m (give or take) that the roof is...

Hi all.

I was doing a side-by-side comparison between the Tamron A2 135mm F2.5 and Pentax Tak bayonet 135mm F2.5, because I need to trim my collection and want to make a decision.

I noticed this strange behaviour while focusing both lenses...

I try to focus on the far distance building with the little tower (upper right corner in these heavy crops).

Tamron Adaptal-2 135mm F2.5, ISO100, F4, 1/320



SMC Tak bayonet 135mm F2.5, ISO100, F4, 1/400



Both show the rooftop (much closer) in focus while the point of focus (circa infinity) is not in focus, neither is the space between (or the space between roof and camera btw).

I checked, I didn't mix shots. I focused using the automatic focus detection, but to my eyes it should be in focus or close. The focus scale does not lie though, the focus was hitting the edge on both. Going back does not improve focus.

Funny thing is, the roof top is in better focus than when I tried to focus the roof (not a bit, noticeable...).

What the heck is going on?


On a related note, my opinion, based on these copies and the few shots taken is that.
The SMC tak bayonette is far less of a dog than many say. But is it noticeable softer than the SMC-M F3.5 at all apertures (at least F3.5-8 ).
The Tak-bayonette is sharper than the Tamron at F2.5, but this seems to change at higher apertures. However the Tak-bayonette showed PF which I did not see for the Tamron under the same conditions. This is probably a result of the tak-bayonete being a budget lens with poor coatings?

I would include the the Sigma 18-125mm and Tamron 24-135mm
Excellent range.
I have the a Sigma 28-70mm F2.8-4 and its a fine lens, but it kept having the 17-70mm at the same time (sold now) 28mm always seems restrictive.
I think the 17-70mm compared to 24-70mm will still seem favourable, despite the F2.8 advantage of the later lens.
With 24-135mm at least you really gain on range. Even more so for the 18-125mm, although that has disputable fame.