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part report - 4mm TMB versus 5mm LV vixen
seeing poor - as there is a 8 degree difference between mirror and ambient
gamma 2 delphinus split with the 4mm, very nice, warm orange and deep sky blue - nice
achermar (mag 0.43) - 4mm, nice and sharp considering seeing and there is a feeling of wide view comapred to 5mm. 4mm started to break up into red / blue in the outer 10%, whilst the 5mm vixen was better at less than 5%.
tuc47 - 5mm vixen had an alright view of the core filling the fov, BUT the 4mm was significantly better.....a lot sharper on axis, and there was that feeling of immersion maybe even 3D.
The 4mm TMB was very very nice on the core of TUC47!!!!
More to come.....the scope is cooling, the "trap" will be up later and also saturn. I am very keen to compare diffraction rings on the intra and inter focal of both eyepieces. I know the 5mm vixen has always stood out in my mind for the lovely concentric rings compared to the ****ty old 6mm series 500!!!
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