<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
My 114mm Reflector telescope has blurry images. Can you help me troubleshoot this issue?<|im_end|>
<|im_start|>assistant
Hmm, I can suggest a few different reasons for blurry images.
- Focus - check if the image is focus. Usually this can be done by turning the focusing knob/ring.
- Some sort of obstruction, residue, dirt, or damage of the optics. Check for condensation, dust, cracks, or misalignment.
- Shaky mount or any movement (including vibration) of the telescope during the long exposure in astrophotography scenarios. 
- Sky conditions may also be a factor.<|im_end|>
<|im_start|>user
Sorry, I should have mentioned earlier that I'm a beginner. Could you please ELI5 collimation and collimators to me? Additionally, could you recommend any telescope servicing addresses in Brixton, UK? Thank you!<|im_end|>
<|im_start|>assistant
Of course! Collimation is the process of aligning the mirrors inside your telescope so that they are perfectly centered and pointed in the right direction. When the mirrors are not aligned, it can cause images to appear blurry or distorted. Collimators are tools designed to help you collimate your telescope. They usually consist of a small eyepiece that fits into the telescope's focuser and a set of crosshairs that allow you to adjust the mirrors until they are properly aligned.

To use a collimator, simply insert it into your telescope's focuser and follow the instructions that come with it to adjust the mirrors. Some collimators also come with additional tools, such as a cheshire eyepiece, that can help you fine-tune the collimation.

As for telescope servicing addresses in Brixton, UK, I would recommend checking with local astronomy clubs or societies in the area, as they may be able to provide recommendations. You could also try searching online for telescope repair services in Brixton or the surrounding areas. Just be sure to do your research and choose a reputable service provider with experience working on telescopes.<|im_end|>
<|im_start|>user
Thanks!!!!<|im_end|>
<|im_start|>assistant
You're welcome! I'm glad I could help. If you have any other questions, feel free to ask.<|im_end|>