lwingkay

Dear Chak Wing,
Thanks for the comparison. Two side issues which I think you are most capable of giving advice on with your knowledge on digiscoping:
a) Is it inconvenient to digiscope with a prime lens (as opposed to the zoom lens where the focal length can vary) knowing that in such a long focal length environment, the convenience from a zoom lens really helps with framing?
b) It seems a little bit difficult to mount an adaptal on the 20mm lens that you are using. You can mount it directly on the DCA using the screw furrows at the front end of the 20mm lens but I think you will be reluctant to do so as in the long run, irreversible damage will be done to lens. I saw in this forum that you tailor made an adaptor for use on the 20mm. At that time, I had the feeling that it was a little bit flimsy as the adaptor might easily slip off from the lens (I hoped I got this wrong) on prolonged manuvering arising from metering, adjusting exposure and focusing as well as when one carries the digiscoping set around to look for birds. Would like to know whether such are the case and whether improvements have been made to the adaptor thus far?
Regards,
Peter Leung

PS: Probably, the 20mm I mentioned above was the 25mm Panasonic Pan Cake that you commented on last time.

[ Last edited by lwingkay at 27/04/2010 14:37 ]

lwingkay

Re: The mount is now strong as tank

Interested in knowing what the improvements are. Can you show how you assemble parts together?

Pete

lwingkay

Dear Chak Wing,
You're using Panasonic G1 for digiscoping. Two questions for your expert advice:
1) The first question is about using G1 with Swarvoski's TLS 800.
My intended combo is 80 HD STM + TLS 800 + Nikon conversion mount + 4/3 conversion mount (I don't think there is 4/3 conversion mount for TLS 800) + a camera from the Panasonic's G series.
I take the advantage of the absence of the reflex mirror in the G series.
2) The second: whether there is the manual flexible spot focusing device in the G series?
Such is vital for precisely focusing birds' eyes during shooting.
Thanks in anticipation for your attention to the above.
Regards,
Peter

lwingkay

Re: you can also get the T2-m4/3 mount direct, which can be bought in the market.

I should have asked the following in my first posting on this.
a) whether there is a mount for linking the TLS 800 with G1 direct?
You mentioned the T2-M4/3 mount. Does it mean that you have to mount the 4/3 mount on the T2 when using the TLS 800. Or, does it simply mean that there is a 4/3 mount that can be directly mounted on the TLS 800.
Also, where can you buy that mount?
b) Is automatic metering still possible on the G1?
In Nikon, we configurate the lens setting to f10 using the Non-CPU function button in the camera body. Is it the same for G1?
I have been thinking that metering is done by measuring reflected light from the sensor surface right at the moment of exposure, i.e. TTL-off-the-sensor metering SIMILAR TO the one used in the OM bodies (TTL-off-the-film) of the SLR era. If that is the case, then no configuration is required.
c) It is nice that G1 can enlarge a section in the view finder for detailed focusing.
But then in G1, can I move the focusing spot to locations where I want to focus? This function is provided in Nikon 8400.
Thanks for your patience in replying.
Peter

[ Last edited by lwingkay at 28/04/2010 16:56 ]

lwingkay

Thanks for replying sooooooo quickly. I did visit some shops in Mong Kok to check things out. The exposure is pretty okay and both the EVF and LCD are bright, too. The G1 IS promising in most respects.
Do hope that despite the small aperture resulting from the use of TLS800, the EVF is still as bright and the enlarged image is still contrastive enough for focusing.
By the way, were the images in the LCD monitor captured using the 30x eyepiece and the pancake lens?
Regards,
Pete

lwingkay

Dear Chak Wing,

Re: Olympus pancake 25mm f2.8 for 4/3, need adaptor for using on Panasonic G1(setting at f4.5)

I asked this with some shopkeepers in Mong Kong's camera shops and was informed that the OM pancake 25mm could be used on the G1 direct and still be able to obtain auto focusing and auto metering functions. Wonder if these are really the case.

I presume that this OM pancake is also IF in design and that it is possible to link it to the DCA using the screw furrows for the filter on the front part of the lens.

Thanks in anticipation for answering.

Regards,
Peter Leung

lwingkay

Quote:

Original posted by cwchan at 14/05/2010 22:05


Sorry for reply late because not in Hong Kong.

(a)The Olymbus 25mm f2.8 is designed for 4/3 system, it needs a Olymbus MMF-1 (or2)adaptor before it can be used on its mini 4/3 system, like Pen or G ...

It is okay and many thanks for the information.  Pete