Happy new year every one !
I wish you beautiful shots ! and to enjoy every photographic moment.
For the beautiful and incredible G lens ... well, this lens is very good, but ...
Story: (sorry again for my English writing, but I'm trying to improve, please feel free to correct me on my mistake, this will help me for future writing)
On December 24th, this is crazy snow storm outside and I'm deciding to come home earlier (finished at 13h, instead of 18h ...). I have already checked the Tracking number and the lens is waiting for me at the post office. 15h, I'm getting the lens at the post office, very small box ... (i was thinking the box will be bigger).
At home, I'm deciding to not open the box, this will be a kind of Christmas GIFT, so I leaving the box beside the tree.
On December 25th, this is Xmas ! i can open my lens package. I'm happy, the package is small, but very well packed. The G lens is in my hand, this old piece of good Minolta engineering (size of the lens never change, double aperture for ... hum i don't know in fact

). First thing to do when you received a lens from Ebay:
- Coating check under different light : CHECK
- Lens surface (back front ) : CHECK (the ebay description advice about some hair cleaning scratch on the front element)
- able to move the aperture manually : CHECK
- Contact corrosion : CHECK
- Zoom control : CHECK (no strange sound, or blocking)
- Focus ring movement : OUPS ! , it is loose ... hum ... it is looks like that this is not a easy fix ... , check and recheck, there is no way to open easily the lens and do own repair.
- Filter thread : CHECK, but again, the same loose movement than focus ring. well ... i don't like it ...
- All the front glass is not moving like the focus ring or the filter thread : The lens design looks like to protect the inside lens from the outside. This means the optic system don't seams to be affected.
Now I'm ready, i will put the lens on the first Full Frame DSLR Minolta A-mount.
Feeling : On the 7D before, the lens feels heavy and big, now on the A900 it feels like home.
Power on: the lens move greatly, the focus is working, aperture check 2.8 to 22, ok.
I'm going to my PC and I'm writing a message to the seller about the lens condition, and my deception.
I'm playing with the lens for about 2h , outside shot, inside shot, focus (oups ... it focus not closer at my 28-75D, i know ... but it is more present because now the field of view is greater than on the Crop 1.5x ... and you want to include more you subject). I don't see a very big difference between the 5mm of field of view (70 vs 75).
Ok ..i don't want to do it ... but a lot a people will like it, I'm setupping my Tripod and prepare a compare series of picture at 28mm, 40mm, 55mm, 70mm (in fact I'm basing my angle of view on the library).
First observation, the 28-75D is giving about 1/3 of stop more light. I don't know why, but i have already saw that on my first comparison in the past. (same thing where the 24-70mm EX DG of sigma took more light than the 28-75D lens).
Focus, the 28-75D is focusing every time on the good spot, the 28-70G is missing some time the target, even with is slow focus. BUT ! just to let you know that the Focus speed on the G lens is very faster compare to what i have got first on the 7D in the past.
Here is the result, Enjoy :
http://www.pbase.com/nadeauf/2870g_vs_2875da900
I have reduced the 24mp picture to 12mp (space ... $$$

). In ligthroom, i have increased the level of the G lens to have an histogram identical to the 28-75D.
12 hours later, the lens is in the box, for return to the seller. He is telling me that this will help him not to buy the Zeiss lens and wait bit longer. On my side ... i know the 28-70G is incredible in detail from center to almost the end, but ... my budget telling me that my 275$ Ebay deal on the 28-75D lens can do the job when I'm not using prime lenses ... But in fact ... i will miss again the G lens

, and probably will fall in love again and need it beside me, but next time.
That's it
Thank you for your time,
Frank